{"title":"3 High Limit Control Switches","description":"","products":[{"product_id":"543-038","title":"543-038","description":"Ensure the safety and efficiency of your heating system with this professional-grade 3-inch high limit switch. Designed as a critical safety component for furnaces and HVAC units, this temperature limit control acts as a thermal cutout to prevent overheating. The switch is engineered to automatically interrupt the electrical circuit if the internal temperature exceeds safe operating parameters, specifically tripping at 250°F and resetting after a 30°F cooling period. This reliable replacement part is essential for maintaining optimal airflow and protecting your appliance from heat-related damage. Whether you are performing routine maintenance or a critical repair, this high-limit sensor provides the precision and durability needed for consistent climate control performance.\u003cbr\u003e\nType: High Limit Control Switch\u003cbr\u003e\nSize: 3-inch probe insertion\u003cbr\u003e\nDimensions: 3 in\u003cbr\u003e\nApplication: Gas-fired furnaces, residential HVAC systems, rooftop heating units, and commercial forced-air climate control systems.\u003cbr\u003e\nSpecifications: Temperature Open: 250°F; Temperature Close: 220°F (30°F differential); Automatic reset; Fixed temperature limit.","brand":"BCFurnace","offers":[{"title":"3\" HIGH LIMIT SWITCH L250F-30F \/ 543-038","offer_id":47250942492957,"sku":null,"price":91.53,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L250F-30F \/ 46K72","offer_id":47250942525725,"sku":null,"price":91.53,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L250F-30F \/ 46K7201","offer_id":47250942558493,"sku":null,"price":91.53,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L250F-30F \/ L250F-30","offer_id":47250942624029,"sku":null,"price":91.53,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L250F-30F \/ R40154B012","offer_id":47250942591261,"sku":null,"price":91.53,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/7298\/9981\/files\/9d342ec819c1472bac40f7761949130d.webp?v=1773958660"},{"product_id":"543-210","title":"543-210","description":"The 3-inch High Limit Switch L210-40F is a vital safety component designed for residential forced-air furnaces and heating systems. This thermal limit control serves as a primary safety mechanism, monitoring the air temperature within the heat exchanger to prevent dangerous overheating. If the temperature exceeds the calibrated threshold of 210°F, the switch automatically breaks the electrical circuit to the burner or heating elements, protecting the unit from damage and ensuring home safety. Once the system cools by the designated 40°F differential, the switch automatically resets to restore normal operation. This high-quality replacement part is essential for resolving issues related to furnace short-cycling or thermal cut-out failures caused by restricted airflow or mechanical malfunctions.\u003cbr\u003e\nType: High Limit Control Switch\u003cbr\u003e\nSize: 3-inch insertion depth\u003cbr\u003e\nDimensions: 3 inches\u003cbr\u003e\nApplication: Used in gas and electric forced-air furnaces as a safety limit to monitor heat exchanger temperatures and prevent thermal overload.\u003cbr\u003e\nSpecifications: Open Temperature: 210°F; Close Temperature: 170°F (40°F Differential); Reset Type: Automatic; Configuration: Normally Closed (NC) SPST; Probe Length: 3 inches.","brand":"BCFurnace","offers":[{"title":"3\" HIGH LIMIT SWITCH L210-40F \/ 543-210","offer_id":47250952978717,"sku":null,"price":98.03,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L210-40F \/ 3L09-11","offer_id":47250953077021,"sku":null,"price":98.03,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L210-40F \/ HH12ZB210","offer_id":47250953011485,"sku":null,"price":98.03,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L210-40F \/ L210-40F.","offer_id":47250953044253,"sku":null,"price":98.03,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/7298\/9981\/files\/11194903ae1943eba66411fd24e6e1e5.webp?v=1773956998"},{"product_id":"543-185","title":"543-185","description":"This 3-inch high limit switch is a critical safety component designed for furnace and HVAC applications. It functions as a thermal cutout, monitoring the internal temperature of the heating system to prevent overheating and potential equipment damage. If temperatures rise above a safe threshold, the switch automatically interrupts the electrical circuit, protecting the furnace from excessive heat caused by restricted airflow or blower failure. Once the unit cools, the switch resets to restore normal operation. This durable, high-performance control is essential for ensuring the safe and efficient performance of residential forced-air heating systems.\u003cbr\u003e\nType: High Limit Control Switch\u003cbr\u003e\nSize: 3-inch probe\u003cbr\u003e\nDimensions: 3 in\u003cbr\u003e\nApplication: Commonly used in forced-air furnaces and HVAC heating units as a primary safety thermal limit control.\u003cbr\u003e\nSpecifications: 185°F trip temperature with a 30°F automatic reset differential.","brand":"BCFurnace","offers":[{"title":"3\" HIGH LIMIT SWITCH L185-30F \/ 543-185","offer_id":47250953175325,"sku":null,"price":72.21,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L185-30F \/ 49L88","offer_id":47250953240861,"sku":null,"price":72.21,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L185-30F \/ 49L8801","offer_id":47250953208093,"sku":null,"price":72.21,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L185-30F \/ L185-30F","offer_id":47250953273629,"sku":null,"price":72.21,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/7298\/9981\/files\/6bd60bda0d544fc6845f08cfd29d13e3.webp?v=1773956997"},{"product_id":"543-155","title":"543-155","description":"Ensure the safety and efficiency of your heating system with this premium 3-inch furnace high limit switch. Designed as a critical safety component for residential gas furnaces, this limit control sensor monitors the air temperature within the heat exchanger. If internal temperatures exceed the safe threshold, the switch automatically interrupts power to the gas valve or ignition system to prevent overheating and potential equipment damage. Once the furnace cools to a safe operating temperature, the switch resets to allow for normal heating cycles. This durable replacement part is essential for maintaining proper furnace airflow safety and protecting your home from HVAC-related hazards. It is a vital component for restoring reliable performance to forced-air heating systems.\u003cbr\u003e\nType: Furnace High Limit Control Switch\u003cbr\u003e\nSize: 3-inch insertion depth\u003cbr\u003e\nDimensions: 3 inches\u003cbr\u003e\nApplication: Used in residential gas furnaces and forced-air heating systems as a primary safety limit control to prevent heat exchanger overheating.\u003cbr\u003e\nSpecifications: Cut-out Temperature: 155°F; Differential: 30°F; Configuration: Opens on temperature rise (Normally Closed); Reset Type: Automatic reset.","brand":"BCFurnace","offers":[{"title":"3\" HIGH LIMIT SWITCH L155-30F \/ 543-155","offer_id":47250953371933,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L155-30F \/ 10M74","offer_id":47250953404701,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L155-30F \/ 10M7401","offer_id":47250953437469,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L155-30F \/ L155-30F.","offer_id":47250953470237,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/7298\/9981\/files\/242232e5a47547838fb6b1b16ade046d.webp?v=1773956994"},{"product_id":"543-165","title":"543-165","description":"Ensure the safety and efficiency of your residential heating system with this premium 3-inch high limit switch. Designed as a critical safety component for forced-air HVAC furnaces, this thermal limit control monitors internal temperatures to prevent the heat exchanger from overheating. The switch is engineered to automatically interrupt the heating circuit if the air temperature exceeds the pre-set safety threshold, protecting your equipment from damage and ensuring safe operation. Featuring an automatic reset function, this reliable replacement part is an essential component for routine furnace maintenance and repair, helping to restore proper airflow and heat regulation to your home heating system.\u003cbr\u003e\nType: Furnace High Limit Safety Control\u003cbr\u003e\nSize: 3-inch probe depth\u003cbr\u003e\nDimensions: 3 inches (insertion depth)\u003cbr\u003e\nApplication: Used in gas and electric residential furnaces, forced-air heating systems, and HVAC air handlers to prevent over-temperature conditions.\u003cbr\u003e\nSpecifications: Fixed temperature limit of 165°F with a 30°F reset differential; normally closed (NC) electrical configuration; automatic reset functionality.","brand":"BCFurnace","offers":[{"title":"3\" HIGH LIMIT SWITCH L165-30F \/ 543-165","offer_id":47250953535773,"sku":null,"price":78.57,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L165-30F \/ 38M07","offer_id":47250953568541,"sku":null,"price":78.57,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L165-30F \/ 38M0701","offer_id":47250953601309,"sku":null,"price":78.57,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L165-30F \/ 56W22","offer_id":50881076592925,"sku":null,"price":78.57,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L165-30F \/ L165-30F","offer_id":47250953634077,"sku":null,"price":78.57,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L165-30F \/ R46105-003","offer_id":50881076625693,"sku":null,"price":78.57,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/7298\/9981\/files\/8d2898456b3748efaf3b283f88674848.webp?v=1773957013"},{"product_id":"543-220","title":"543-220","description":"Ensure the safety and efficiency of your forced-air heating system with this premium 3-inch high limit switch. Designed as a critical safety component for residential furnaces and HVAC units, this thermal limit control prevents the heat exchanger from overheating by automatically interrupting power if internal temperatures exceed safe operating limits. It features a specific 'Open on Rise' temperature threshold to provide reliable protection against restricted airflow, clogged filters, or blower motor failure. Whether you are performing routine maintenance or repairing a malfunctioning heating system, this durable sensor is essential for maintaining optimal indoor climate control and protecting your appliance from potential heat damage.\u003cbr\u003e\nType: High Limit Control Switch\u003cbr\u003e\nSize: 3-inch probe\u003cbr\u003e\nDimensions: 3 in\u003cbr\u003e\nApplication: Gas furnaces, electric furnaces, and forced-air heating systems.\u003cbr\u003e\nSpecifications: Cut-out Temperature: 220°F; Differential: 40°F; Configuration: Normally Closed (NC); Function: Opens on temperature rise to prevent overheating.","brand":"BCFurnace","offers":[{"title":"3\" HIGH LIMIT SWITCH L220-40F \/ 543-220","offer_id":47250953732381,"sku":null,"price":80.43,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L220-40F \/ HH12ZA221","offer_id":47250953830685,"sku":null,"price":80.43,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L220-40F \/ HH12ZA221A","offer_id":47250953863453,"sku":null,"price":80.43,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L220-40F \/ HH12ZA223","offer_id":47250953797917,"sku":null,"price":80.43,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L220-40F \/ HH12ZB220","offer_id":47250953765149,"sku":null,"price":80.43,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L220-40F \/ L220-40F.","offer_id":47250953896221,"sku":null,"price":80.43,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/7298\/9981\/files\/1684cde486a24f2fb2b114effd2edbe3.webp?v=1773960828"},{"product_id":"543-160","title":"543-160","description":"This 3-inch high limit switch is a vital safety component designed for residential furnaces and HVAC heating systems. Functioning as a thermal cutout, this sensor monitors the temperature within the heat exchanger to prevent the unit from overheating. The L160-40F configuration is engineered to automatically trip and break the electrical circuit when the internal temperature reaches 160°F, protecting your equipment from heat-related damage and ensuring safe operation. Once the system cools down by 40°F (to 120°F), the switch automatically resets to allow normal heating cycles to resume. This replacement limit control is an essential fix for furnaces experiencing short-cycling or failing to ignite due to a faulty safety sensor.\u003cbr\u003e\nType: High Limit Control Switch\u003cbr\u003e\nSize: 3-inch insertion depth\u003cbr\u003e\nDimensions: 3 inches (probe depth)\u003cbr\u003e\nApplication: Forced-air furnaces, central heating units, and residential HVAC systems requiring a safety limit control to monitor heat exchanger temperatures.\u003cbr\u003e\nSpecifications: Open Temperature: 160°F; Close Temperature: 120°F (40°F Differential); Automatic Reset; Normally Closed (NC) circuit.","brand":"BCFurnace","offers":[{"title":"3\" HIGH LIMIT SWITCH L160-40F \/ 543-160","offer_id":47250954027293,"sku":null,"price":79.72,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L160-40F \/ 20001109","offer_id":47250954223901,"sku":null,"price":79.72,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L160-40F \/ 92L15","offer_id":47250954125597,"sku":null,"price":79.72,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L160-40F \/ 92L1501","offer_id":47250954158365,"sku":null,"price":79.72,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L160-40F \/ HH12ZB160","offer_id":47250954060061,"sku":null,"price":79.72,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L160-40F \/ L160-40F.","offer_id":47250954092829,"sku":null,"price":79.72,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L160-40F \/ R20001109","offer_id":47250954191133,"sku":null,"price":79.72,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/7298\/9981\/files\/f31517312d3d41468a3d09e74dd814e1.webp?v=1773957028"},{"product_id":"543-175","title":"543-175","description":"Ensure the safety and efficiency of your home heating system with this professional-grade 3-inch furnace high limit switch. Designed as a critical safety component for residential gas and electric furnaces, this high-limit control monitors the internal temperature of the heat exchanger to prevent hazardous overheating. It acts as a thermal safeguard by automatically breaking the electrical circuit when the air temperature exceeds the designated limit, then resetting once the system has cooled sufficiently. This high-limit sensor is an essential replacement part for HVAC systems experiencing frequent cycling or safety-related shutdowns, ensuring reliable operation and peace of mind during the heating season.\u003cbr\u003e\nType: Furnace High Limit Control Switch\u003cbr\u003e\nSize: 3-inch insertion depth\u003cbr\u003e\nDimensions: 3 inches (probe depth)\u003cbr\u003e\nApplication: Residential gas furnaces, electric heating systems, and HVAC blower assemblies where internal temperature monitoring is required for safety.\u003cbr\u003e\nSpecifications: Opening Temperature: 175°F; Closing Temperature: 145°F; Temperature Differential: 30°F; Reset Type: Automatic; Sensor Type: Bimetal Disc; Mounting: Flange.","brand":"BCFurnace","offers":[{"title":"3\" HIGH LIMIT SWITCH L175-30F \/ 543-175","offer_id":47250954322205,"sku":null,"price":68.87,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L175-30F \/ 3L09-7","offer_id":47250954453277,"sku":null,"price":68.87,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L175-30F \/ 49L86","offer_id":47250954387741,"sku":null,"price":68.87,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L175-30F \/ 49L8601","offer_id":47250954354973,"sku":null,"price":68.87,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L175-30F \/ L175-30F.","offer_id":47250954420509,"sku":null,"price":68.87,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/7298\/9981\/files\/6ab3e660a49a4846841c889821df652d.webp?v=1773956995"},{"product_id":"543-145","title":"543-145","description":"The 3\" High Limit Switch L145-30F is a critical safety component engineered for HVAC systems and residential furnaces. This thermal limit control acts as a vital safeguard by monitoring the internal temperature of the heat exchanger to prevent overheating and potential equipment damage. Designed to open at a fixed temperature of 145°F, the switch interrupts the heating cycle if temperatures exceed safe operating limits and automatically resets once the temperature drops by 30°F. Reliable and durable, this high-limit sensor is a common replacement part for heating systems experiencing frequent cycling or safety shut-offs, ensuring your furnace operates safely and efficiently throughout the heating season.\u003cbr\u003e\nType: High Limit Control Switch\u003cbr\u003e\nSize: 3-inch insertion depth\u003cbr\u003e\nDimensions: 3 inches (probe depth)\u003cbr\u003e\nApplication: Used in forced-air furnaces, HVAC units, and heating systems to monitor air temperature and provide over-temperature protection.\u003cbr\u003e\nSpecifications: Open Temperature: 145°F; Close\/Reset Differential: 30°F; Switch Logic: Normally Closed (Opens on Temperature Rise); Probe Length: 3 inches.","brand":"BCFurnace","offers":[{"title":"3\" HIGH LIMIT SWITCH L145-30F \/ 543-145","offer_id":47250954682653,"sku":null,"price":195.57,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L145-30F \/ 83L89","offer_id":47250954780957,"sku":null,"price":195.57,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L145-30F \/ 83L8901","offer_id":47250954715421,"sku":null,"price":195.57,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L145-30F \/ C340056P15","offer_id":47250954846493,"sku":null,"price":195.57,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L145-30F \/ L145-30","offer_id":47250954813725,"sku":null,"price":195.57,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L145-30F \/ SWT01277","offer_id":47250954748189,"sku":null,"price":195.57,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/7298\/9981\/files\/3b0bcbf645bb46dca44b255afd8faebb.webp?v=1773957021"},{"product_id":"543-235","title":"543-235","description":"Ensure the safety and efficiency of your heating system with this professional-grade 3-inch high limit control switch. As a vital safety component for residential furnaces and HVAC units, this sensor monitors internal temperatures to prevent the appliance from overheating. The switch is designed to automatically interrupt the heating cycle if the temperature exceeds a specific safety threshold, protecting your equipment from potential damage and ensuring a safe operating environment. Perfect for HVAC repairs and preventative maintenance, this thermal limit control is built for reliability and long-lasting performance in forced-air heating systems. Its standard 3-inch profile allows for precise heat detection within the plenum, making it an essential replacement part for maintaining optimal furnace functionality and home safety.\u003cbr\u003e\nType: High Limit Control Switch\u003cbr\u003e\nSize: 3-inch\u003cbr\u003e\nDimensions: 3 in\u003cbr\u003e\nApplication: Used primarily in gas and electric furnaces, HVAC systems, and forced-air heating units to monitor plenum temperature and provide over-temperature protection.\u003cbr\u003e\nSpecifications: Switching Logic: Normally Closed (NC); Open Temperature: 240°F; Close Temperature: 200°F (40°F Differential); Mounting: 3-inch insertion depth; Function: Opens on temperature rise for safety shutdown.","brand":"BCFurnace","offers":[{"title":"3\" HIGH LIMIT SWITCH L240-40F \/ 543-235","offer_id":47250965463325,"sku":null,"price":80.48,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L240-40F \/ HH12ZA252","offer_id":47250965561629,"sku":null,"price":80.48,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L240-40F \/ HH12ZA253A","offer_id":47250965528861,"sku":null,"price":80.48,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L240-40F \/ HH12ZB240","offer_id":47250965496093,"sku":null,"price":80.48,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L240-40F \/ L240-40F","offer_id":47250965594397,"sku":null,"price":80.48,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/7298\/9981\/files\/c4864bbd43504ee78ea1945a732ed370.webp?v=1773967004"},{"product_id":"543-250","title":"543-250","description":"This high-limit safety control is a precision-engineered thermal switch designed to monitor and regulate internal temperatures within heating equipment. It serves as a critical safety device that interrupts the electrical circuit if temperatures exceed a predetermined safe threshold, preventing overheating and potential damage to system components. The switch is designed to automatically reset once the temperature has cooled by a specific differential, ensuring continuous protection without manual intervention.\u003cbr\u003e\nType: High Limit Safety Control Switch\u003cbr\u003e\nSize: 3-inch insertion depth\u003cbr\u003e\nDimensions: 3 inches\u003cbr\u003e\nApplication: Commonly used in residential and commercial forced-air furnaces, air handlers, and HVAC systems to protect heat exchangers and internal assemblies from overheating.\u003cbr\u003e\nSpecifications: Cut-out temperature: 250°F; Reset differential: 40°F; Automatic reset configuration; Single-pole single-throw (SPST) circuitry.","brand":"BCFurnace","offers":[{"title":"3\" HIGH LIMIT SWITCH L250-40F \/ 543-250","offer_id":47250966577437,"sku":null,"price":89.76,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L250-40F \/ HH12ZB250","offer_id":47250966610205,"sku":null,"price":89.76,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L250-40F \/ L250-40F.","offer_id":47250966642973,"sku":null,"price":89.76,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/7298\/9981\/files\/43a56b84ab184c88b824ee52b85184a8.webp?v=1773957002"},{"product_id":"543-190","title":"543-190","description":"This premium 3-inch high limit switch is a vital safety component for residential and commercial heating systems. Designed to monitor the heat exchanger temperature within a furnace or HVAC unit, this thermal cutout switch acts as a critical fail-safe. If the internal temperature reaches a level that could cause damage or pose a safety risk, the switch automatically interrupts the electrical circuit to shut down the heating element or burner. Featuring an L190-40F calibration, it is engineered to trip at 190 degrees Fahrenheit and reset once the temperature has cooled by 40 degrees. Replacing a faulty or tripped limit control is essential for restoring furnace operation and ensuring the long-term reliability of your heating equipment.\u003cbr\u003e\nType: High Limit Control Switch\u003cbr\u003e\nSize: 3-inch probe\u003cbr\u003e\nDimensions: 3 inches (insertion depth)\u003cbr\u003e\nApplication: Used in gas-fired furnaces, electric heating systems, and HVAC air handlers as a primary safety thermal cutout.\u003cbr\u003e\nSpecifications: Opens at 190°F (88°C); Closes at 150°F (66°C); 40°F differential; 3-inch insertion length for accurate temperature sensing within the plenum or heat exchanger.","brand":"BCFurnace","offers":[{"title":"3\" HIGH LIMIT SWITCH L190-40F \/ 543-190","offer_id":47250966675741,"sku":null,"price":90.92,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L190-40F \/ HH12ZB190","offer_id":47250966708509,"sku":null,"price":90.92,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L190-40F \/ L190-40F.","offer_id":47250966741277,"sku":null,"price":90.92,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/7298\/9981\/files\/9ec31bde565e47728f861ebbc0ada816.webp?v=1773957077"},{"product_id":"543-260","title":"543-260","description":"Ensure the safety and efficiency of your residential heating system with this professional-grade 3-inch high limit switch. Designed as a critical thermal safeguard, this furnace limit control monitors the heat exchanger's temperature to prevent overheating. When temperatures exceed the safe operating threshold, the switch automatically interrupts the burner circuit, protecting your HVAC equipment from damage and ensuring home safety. This replacement thermal sensor is essential for furnace repair when the existing switch fails to cycle properly or causes the system to shut down prematurely. Featuring a 260°F cutout and a 40°F reset differential, it provides reliable, long-lasting performance for standard forced-air heating systems.\u003cbr\u003e\nType: High Limit Control Switch\u003cbr\u003e\nSize: 3-inch\u003cbr\u003e\nDimensions: 3 in × Not specified × Not specified\u003cbr\u003e\nApplication: Used in residential gas and electric furnaces, HVAC systems, and forced-air heating units as a safety cutout and temperature regulator.\u003cbr\u003e\nSpecifications: Temperature Open: 260°F; Temperature Close: 220°F (40°F Differential); Switch Type: Normally Closed (NC); Application: Thermal safety limit.","brand":"BCFurnace","offers":[{"title":"3\" HIGH LIMIT SWITCH L260-40F \/ 543-260","offer_id":47250966774045,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L260-40F \/ 1NT23L-3652","offer_id":47250966937885,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L260-40F \/ HH12ZA260","offer_id":47250966872349,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L260-40F \/ HH12ZB260","offer_id":47250966806813,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L260-40F \/ L260-40F","offer_id":47250966905117,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L260-40F \/ P331-2209","offer_id":47250966839581,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/7298\/9981\/files\/0b76844b7f424193b5c115e379dd8a81.webp?v=1773967006"},{"product_id":"543-501","title":"543-501","description":"This professional-grade 3-inch adjustable high limit control switch is a vital safety component for furnaces and forced air heating systems. Engineered to prevent hazardous overheating, this thermal limit switch allows for precise temperature regulation with an adjustable range between 180°F and 250°F. By continuously monitoring the heat within the plenum or heat exchanger, it automatically interrupts the heating circuit if temperatures exceed the safe setpoint, protecting your HVAC equipment from thermal damage and ensuring residential safety. This heavy-duty control is a standard replacement part for maintaining optimal performance and safety in a wide variety of heating applications.\u003cbr\u003e\nType: High Limit Control Switch\u003cbr\u003e\nSize: 3-inch probe length\u003cbr\u003e\nDimensions: 3 inches\u003cbr\u003e\nApplication: Used in forced air furnaces, HVAC systems, and residential or commercial heating units to prevent overheating by acting as a safety cutoff.\u003cbr\u003e\nSpecifications: Adjustable temperature range: 180°F to 250°F (L180-L250); 3-inch sensing element; provides high-limit protection for heating circuits.","brand":"BCFurnace","offers":[{"title":"3\" HIGH LIMIT CONTROL SWITCH ADJUSTABLE L180-L250 \/ 543-501","offer_id":47251009732893,"sku":null,"price":120.58,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT CONTROL SWITCH ADJUSTABLE L180-L250 \/ L4069C 1173","offer_id":47251009798429,"sku":null,"price":120.58,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT CONTROL SWITCH ADJUSTABLE L180-L250 \/ L4069C1173","offer_id":47251009765661,"sku":null,"price":120.58,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/7298\/9981\/files\/0986d1b1eb5f4db79867de09aafbab41.webp?v=1773957262"},{"product_id":"543-280","title":"543-280","description":"Ensure the safety and efficiency of your heating system with this professional-grade 3-inch high limit switch. This essential HVAC safety component is designed to monitor the temperature within a furnace heat exchanger, providing critical protection against overheating. If the internal temperature reaches the maximum safety threshold, the switch automatically interrupts the heating circuit to prevent equipment damage and ensure safe home operation. Once the temperature cools by the specified differential, the switch resets, allowing for normal furnace function. This thermal limit control is a standard requirement for maintaining a reliable forced-air heating system and is a common replacement part for furnaces that are short-cycling or failing to stay lit due to thermal overload.\u003cbr\u003e\nType: High Limit Control Switch\u003cbr\u003e\nSize: 3-inch insertion depth\u003cbr\u003e\nDimensions: 3 in\u003cbr\u003e\nApplication: Used in residential forced-air furnaces, gas heaters, and electric heating systems to monitor plenum temperatures and prevent thermal overloads.\u003cbr\u003e\nSpecifications: Cutout Temperature: 280°F; Reset Differential: 40°F; Reset Temperature: 240°F; Switch Logic: Normally Closed (Opens on Temperature Rise); Reset Type: Automatic.","brand":"BCFurnace","offers":[{"title":"3\" HIGH LIMIT SWITCH L280-40F \/ 543-280","offer_id":47251009863965,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L280-40F \/ HH12ZB280","offer_id":47251009896733,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L280-40F \/ L280-40F","offer_id":47251009929501,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/7298\/9981\/files\/4d1b955889d24d62998d2927b852f696.webp?v=1773957238"},{"product_id":"543-230","title":"543-230","description":"This 3-inch high limit switch is a critical safety component designed for residential and commercial gas furnaces and HVAC systems. It acts as a thermal safeguard by monitoring the temperature of the heat exchanger during the heating cycle. If the system detects an overheating condition that exceeds safe operating limits, the switch automatically interrupts the electrical circuit to the burners, preventing potential damage to the appliance and ensuring home safety. Once the temperature cools down by the designated differential, the switch resets to allow for normal operation. This reliable replacement part is essential for restoring proper function to heating units experiencing cycling issues or safety shutdowns.\u003cbr\u003e\nType: Furnace High Limit Control Switch\u003cbr\u003e\nSize: 3-inch insertion depth\u003cbr\u003e\nDimensions: 3 inches (insertion probe)\u003cbr\u003e\nApplication: Used in forced-air gas furnaces, central heating systems, and HVAC units to prevent overheating of the heat exchanger.\u003cbr\u003e\nSpecifications: Temperature Rating: Opens at 230°F; Differential: 40°F (Resets at 190°F); Mounting: Flange mount; Type: Normally closed, opens on temperature rise.","brand":"BCFurnace","offers":[{"title":"3\" HIGH LIMIT SWITCH L230-40F \/ 543-230","offer_id":47251070812445,"sku":null,"price":77.36,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L230-40F \/ HH12ZA230","offer_id":47251070877981,"sku":null,"price":77.36,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L230-40F \/ HH12ZA230A","offer_id":47251070910749,"sku":null,"price":77.36,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L230-40F \/ HH12ZB230","offer_id":47251070845213,"sku":null,"price":77.36,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L230-40F \/ L230-40F.","offer_id":47251070943517,"sku":null,"price":77.36,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/7298\/9981\/files\/c15642b8e6da41c99f02576e053a2bde.webp?v=1773957416"},{"product_id":"543-205","title":"543-205","description":"The 3\" High Limit Switch L205-30F is a vital safety component engineered for modern heating systems and residential furnaces. This thermal sensor acts as a fail-safe by monitoring internal temperatures within the heat exchanger. Designed to protect your HVAC equipment from overheating, the switch automatically opens the circuit when the temperature reaches 205°F and resets once it cools down by 30°F. If your furnace blower runs continuously or the burner fails to ignite, a faulty limit control switch may be the cause. This high-quality replacement part ensures your heating unit operates within safe thermal parameters, extending the lifespan of your appliance and maintaining home safety.\u003cbr\u003e\nType: HVAC High Limit Control Switch\u003cbr\u003e\nSize: 3-inch insertion depth\u003cbr\u003e\nDimensions: 3 in\u003cbr\u003e\nApplication: Used in forced-air gas furnaces, air handlers, and various residential heating systems to monitor heat exchanger temperatures and provide thermal protection.\u003cbr\u003e\nSpecifications: Temperature Rating: Opens at 205°F, Closes at 175°F (30°F Differential); Configuration: Normally Closed (NC); Mounting style: Flange-mount for duct or cabinet installation.","brand":"BCFurnace","offers":[{"title":"3\" HIGH LIMIT SWITCH L205-30F \/ 543-205","offer_id":47251215909149,"sku":null,"price":85.77,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L205-30F \/ 1416448676","offer_id":47251216007453,"sku":null,"price":85.77,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L205-30F \/ 38M68","offer_id":47251215941917,"sku":null,"price":85.77,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L205-30F \/ 38M6801","offer_id":47251215974685,"sku":null,"price":85.77,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L205-30F \/ 47505","offer_id":47251216105757,"sku":null,"price":85.77,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L205-30F \/ A1416","offer_id":47251216072989,"sku":null,"price":85.77,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L205-30F \/ L205-30F..","offer_id":47251216040221,"sku":null,"price":85.77,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/7298\/9981\/files\/cf9527c5eb394b28ae02d38d700709d8.webp?v=1773957774"},{"product_id":"543-053","title":"543-053","description":"Ensure the safety and efficiency of your heating system with this premium 3-inch high limit switch. Designed as a critical safety sensor for residential furnaces and HVAC units, the L290-30F control prevents equipment damage by monitoring internal temperatures. This switch is engineered to automatically interrupt power to the gas valve or heating element if the system exceeds the preset 290°F safety threshold, effectively preventing overheating and potential fire hazards. Once the temperature cools by 30°F, the switch resets to allow for normal operation. If your heater is cycling on and off too frequently or has shut down due to high temperatures, this high limit control is the ideal replacement part to restore reliable performance and peace of mind.\u003cbr\u003e\nType: High Limit Control Switch\u003cbr\u003e\nSize: 3-inch\u003cbr\u003e\nDimensions: 3 in\u003cbr\u003e\nApplication: Commonly used in forced-air furnaces, HVAC heating systems, and central heating units to provide overheating protection and blower fan control.\u003cbr\u003e\nSpecifications: Cut-out temperature: 290°F; Differential\/Reset: 30°F; 3-inch probe length; Automatic reset functionality.","brand":"BCFurnace","offers":[{"title":"3\" HIGH LIMIT SWITCH L290-30F \/ 543-053","offer_id":47251216433437,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L290-30F \/ 1370905S","offer_id":47251216498973,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/7298\/9981\/files\/b0bfb151ea23421eab82b0c90d434c6a.webp?v=1773957844"},{"product_id":"543-005","title":"543-005","description":"Ensure the safety and efficiency of your heating system with this 3-inch furnace high limit switch. Designed as a critical thermal protection component for residential gas furnaces and HVAC units, this high limit control monitors the temperature of the heat exchanger. It acts as a safety cutout, automatically interrupting the heating cycle if the internal temperature reaches 220°F to prevent overheating and potential equipment damage. Once the temperature drops by 30°F, the switch resets to resume normal operation. This reliable replacement sensor is essential for troubleshooting furnace short-cycling or safety shutdown issues, providing peace of mind and maintaining optimal climate control performance in forced-air systems.\u003cbr\u003e\nType: HVAC High Limit Safety Switch\u003cbr\u003e\nSize: 3-inch insertion depth\u003cbr\u003e\nDimensions: 3 in\u003cbr\u003e\nApplication: Primarily used in residential gas furnaces and forced-air heating equipment to prevent heat exchanger overheating.\u003cbr\u003e\nSpecifications: Cut-out Temperature: 220°F; Differential (Cut-in): 30°F; Switch Type: Normally Closed (NC); Reset Type: Automatic","brand":"BCFurnace","offers":[{"title":"3\" HIGH LIMIT SWITCH L220-30F \/ 543-005","offer_id":47251216793885,"sku":null,"price":69.91,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L220-30F \/ 29M75","offer_id":47251216957725,"sku":null,"price":69.91,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L220-30F \/ 29M7501","offer_id":47251216924957,"sku":null,"price":69.91,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L220-30F \/ C340056P10","offer_id":47251216892189,"sku":null,"price":69.91,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L220-30F \/ SWT01273","offer_id":47251216826653,"sku":null,"price":69.91,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L220-30F \/ SWT1273","offer_id":47251216859421,"sku":null,"price":69.91,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/7298\/9981\/files\/40153b901b74474dbefb08b62b814de1.webp?v=1773957838"},{"product_id":"543-006","title":"543-006","description":"Ensure your heating system operates safely and efficiently with this professional-grade high limit control switch. Designed as a critical safety component for forced-air furnaces and HVAC units, this thermal sensor monitors the temperature of the heat exchanger to prevent overheating. It is engineered to automatically interrupt the electrical circuit if internal temperatures exceed the safe operating threshold, protecting your equipment from damage and ensuring home safety. Once the system cools by a specific temperature differential, the switch resets to allow for normal operation. This reliable replacement part is essential for troubleshooting furnace short-cycling or thermal cutout issues, providing long-lasting durability for seasonal maintenance and repairs.\u003cbr\u003e\nType: High Limit Control Switch\u003cbr\u003e\nSize: 3-inch probe depth\u003cbr\u003e\nDimensions: 3 in\u003cbr\u003e\nApplication: Used in residential and commercial gas and electric furnaces, air handlers, and heating systems to provide thermal protection and prevent heat exchanger overheating.\u003cbr\u003e\nSpecifications: Temperature Rating: Opens at 180°F, Closes at 150°F (30°F differential); Circuit: Normally Closed (NC); Mounting style: Flange mount with 3-inch insertion probe.","brand":"BCFurnace","offers":[{"title":"3\" HIGH LIMIT SWITCH L180-30F \/ 543-006","offer_id":47251217154333,"sku":null,"price":118.54,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L180-30F \/ 26H65","offer_id":47251217449245,"sku":null,"price":118.54,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L180-30F \/ 26H6501","offer_id":47251217350941,"sku":null,"price":118.54,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L180-30F \/ 26H68","offer_id":47251217416477,"sku":null,"price":118.54,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L180-30F \/ 26H6801","offer_id":47251217383709,"sku":null,"price":118.54,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L180-30F \/ C340056P03","offer_id":47251217285405,"sku":null,"price":118.54,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L180-30F \/ L180-30F","offer_id":47251217318173,"sku":null,"price":118.54,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L180-30F \/ SWT01271","offer_id":47251217187101,"sku":null,"price":118.54,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L180-30F \/ SWT1271","offer_id":47258991001885,"sku":null,"price":118.54,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/7298\/9981\/files\/4e0189eedf734b3ea9484e0c3d24c537.webp?v=1773967174"},{"product_id":"543-170","title":"543-170","description":"This premium 3-inch high limit switch is a vital safety component designed for residential gas furnaces and HVAC heating systems. Functioning as a thermal cutout, this switch monitors the temperature within the heat exchanger to provide essential overheating protection. When the internal air temperature reaches a critical threshold of 170°F, the switch automatically interrupts power to the heating element or burner, preventing equipment damage and ensuring home safety. This reliable replacement part features an automatic reset with a 40°F differential, meaning it will restore system operation once temperatures have cooled to a safe level. Engineered for durability and precision, this furnace limit control is a common solution for systems experiencing cycling issues or safety shutdowns.\u003cbr\u003e\nType: High Limit Control Switch\u003cbr\u003e\nSize: 3-inch insertion length\u003cbr\u003e\nApplication: Used in forced-air gas furnaces and HVAC heating units as a primary safety sensor to prevent overheating and equipment failure.\u003cbr\u003e\nSpecifications: Temperature Cut-out: 170°F; Temperature Differential: 40°F; Reset Type: Automatic; Mounting Style: Flange mount with 3-inch probe depth.","brand":"BCFurnace","offers":[{"title":"3\" HIGH LIMIT SWITCH L170-40F \/ 543-170","offer_id":47251217580317,"sku":null,"price":80.73,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L170-40F \/ 1NT23L-3643","offer_id":47251217678621,"sku":null,"price":80.73,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L170-40F \/ BA20203","offer_id":49686681485597,"sku":null,"price":80.73,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L170-40F \/ HH12ZB170","offer_id":47251217613085,"sku":null,"price":80.73,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L170-40F \/ L170-40F..","offer_id":47251217645853,"sku":null,"price":80.73,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/7298\/9981\/files\/543becedc0c24cf59cbfdd53fb68c1d5.webp?v=1773957853"},{"product_id":"543-014","title":"543-014","description":"The 3-inch High Limit Switch (L125-30F) is a vital safety component designed for residential heating systems, including gas furnaces, electric furnaces, and air handlers. This thermal limit control switch acts as a failsafe by monitoring the internal temperature of your HVAC unit to prevent hazardous overheating. When the temperature reaches the factory-preset limit of 125°F, the switch automatically opens the electrical circuit to shut down the heat source. Once the unit cools down by the 30°F differential (resetting at 95°F), the switch closes to allow normal operation. If your heating system is short cycling or the blower motor is running constantly without heat, a faulty high limit sensor may be the cause. This high-quality replacement part ensures your equipment operates within safe parameters, protecting your heat exchanger and home from damage.\u003cbr\u003e\nType: High Limit Control Switch\u003cbr\u003e\nSize: 3-inch\u003cbr\u003e\nDimensions: 3 in\u003cbr\u003e\nApplication: Commonly used in forced-air furnaces and HVAC air handling units to monitor plenum temperatures and provide overheat protection.\u003cbr\u003e\nSpecifications: Opening Temperature: 125°F; Closing Temperature: 95°F; Temperature Differential: 30°F; Automatic Reset function.","brand":"BCFurnace","offers":[{"title":"3\" HIGH LIMIT SWITCH L125-30F \/ 543-014","offer_id":47251231605021,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L125-30F \/ C340056P12","offer_id":47251231670557,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L125-30F \/ L125-30F..","offer_id":47251231736093,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L125-30F \/ SWT01274","offer_id":47251231637789,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L125-30F \/ SWT1274","offer_id":47251231703325,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/7298\/9981\/files\/9f58d1b98e694955842772da0f830e6c.webp?v=1773957855"},{"product_id":"543-003","title":"543-003","description":"This premium 3-inch high limit switch is a critical safety component designed for forced-air heating systems and residential furnaces. Functioning as a thermal cutout, this switch monitors the internal temperature of the heat exchanger or plenum. If the system exceeds a safe operating temperature, the switch automatically breaks the electrical circuit to prevent overheating and potential damage to the appliance. Once the temperature cools to a safe level, the internal bimetal disc resets, allowing the system to resume normal operation. Essential for DIY furnace repair and HVAC maintenance, this high-limit control ensures your heating equipment operates within manufacturer safety parameters, protecting your home from fire hazards and mechanical failure caused by restricted airflow or component malfunction.\u003cbr\u003e\nType: High Limit Safety Switch\u003cbr\u003e\nSize: 3-inch insertion depth\u003cbr\u003e\nDimensions: 3 in\u003cbr\u003e\nApplication: Commonly used in gas and electric furnaces, air handlers, and forced-air heating systems to monitor plenum temperature and provide high-heat protection.\u003cbr\u003e\nSpecifications: Standard 220-degree Fahrenheit cutout (L220) with a 30-degree Fahrenheit differential (30F) for automatic reset.","brand":"BCFurnace","offers":[{"title":"3\" HIGH LIMIT SWITCH L220-30F \/ 543-003","offer_id":47251247268125,"sku":null,"price":110.05,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L220-30F \/ 1NT23L-2179","offer_id":47251247366429,"sku":null,"price":110.05,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L220-30F \/ C340366P04","offer_id":47251247399197,"sku":null,"price":110.05,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L220-30F \/ L220-30F.","offer_id":47251247333661,"sku":null,"price":110.05,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L220-30F \/ SWT01614","offer_id":47251247300893,"sku":null,"price":110.05,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/7298\/9981\/files\/95a8e3042a6e46118c6b07b85cca201a.webp?v=1773957910"},{"product_id":"543-019","title":"543-019","description":"Ensure the safety and efficiency of your heating system with this premium 3-inch high limit control switch. Designed as a critical safety component for forced-air furnaces and HVAC units, this thermal sensor monitors the internal temperature of your appliance. If the system exceeds a safe operating threshold, the switch automatically breaks the electrical circuit to prevent overheating and potential damage to the heat exchanger. Once the temperature drops to a safe level, the automatic reset feature restores functionality. This durable high limit switch is an essential replacement part for maintaining proper airflow temperature and protecting your home's climate control system from thermal overload.\u003cbr\u003e\nType: High Limit Control Switch\u003cbr\u003e\nSize: 3-inch insertion depth\u003cbr\u003e\nDimensions: 3 in\u003cbr\u003e\nApplication: Forced-air furnaces, residential HVAC systems, air handlers, and gas or electric heating units.\u003cbr\u003e\nSpecifications: Trip Temperature: 170°F; Reset Differential: 30°F; Switch Type: Normally Closed (NC); Reset Type: Automatic; Mounting: Flange mount.","brand":"BCFurnace","offers":[{"title":"3\" HIGH LIMIT SWITCH L170-30F \/ 543-019","offer_id":47251249168669,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L170-30F \/ 28688","offer_id":47251249365277,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L170-30F \/ 36T01B3","offer_id":47251249332509,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L170-30F \/ C340366P01","offer_id":47251249299741,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L170-30F \/ ERC 28688","offer_id":47251249398045,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L170-30F \/ L170-30F.","offer_id":47251249266973,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L170-30F \/ SWT01611","offer_id":47251249201437,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L170-30F \/ SWT1611","offer_id":47251249234205,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/7298\/9981\/files\/2ea1eb275064427bbacd00e00e714a18.webp?v=1773957912"},{"product_id":"543-054","title":"543-054","description":"Ensure your home heating system operates safely and efficiently with this professional-grade 3-inch high limit control switch. As a vital safety component in residential furnaces and HVAC units, this thermal limit switch monitors internal temperatures to prevent the system from overheating. This specific limit control is designed to automatically break the electrical circuit when the temperature reaches its 210-degree Fahrenheit threshold, protecting your heat exchanger and sensitive internal components from heat damage. The switch features a 30-degree differential, allowing the system to reset once the temperature drops to a safe operating level. Whether you are performing routine furnace maintenance or repairing a heating system that is short-cycling, this high-limit cutout is an essential replacement part for maintaining a secure and reliable climate control system.\u003cbr\u003e\nType: High Limit Control Switch\u003cbr\u003e\nSize: 3-inch insertion depth\u003cbr\u003e\nDimensions: 3 inches\u003cbr\u003e\nApplication: Commonly used as a safety sensor in forced-air furnaces, HVAC systems, and residential heating equipment to monitor heat exchanger temperatures and prevent thermal runaway.\u003cbr\u003e\nSpecifications: Opening Temperature: 210°F; Closing Temperature: 180°F (30°F Differential); Circuit Configuration: Normally Closed (NC); Mounting: Flange mount with 3-inch probe insertion.","brand":"BCFurnace","offers":[{"title":"3\" HIGH LIMIT SWITCH L210-30F \/ 543-054","offer_id":47251249430813,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L210-30F \/ 1370902S","offer_id":47251249463581,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L210-30F \/ 36TO1B3","offer_id":49548991791389,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/7298\/9981\/files\/edbf17c3c9fa4acb92a5e1f00235a16a.webp?v=1773957927"},{"product_id":"543-018","title":"543-018","description":"This 3-inch High Limit Switch is a critical safety component designed for modern HVAC systems and forced-air furnaces. Its primary function is to monitor the internal temperature of the heat exchanger or plenum, automatically cutting power to the heating source if temperatures exceed a safe operating threshold. Featuring a precision L190-30F thermal profile, the switch is engineered to open the circuit at 190 degrees Fahrenheit and reset once the temperature drops by 30 degrees. Replacing a malfunctioning or tripped high limit control is essential for preventing system overheating, protecting the heat exchanger from damage, and ensuring the safety of your home heating system. This durable, snap-action thermal sensor is a standard requirement for maintaining proper airflow and temperature regulation in residential and commercial heating units.\u003cbr\u003e\nType: HVAC High Limit Control Switch\u003cbr\u003e\nSize: 3-inch insertion depth\u003cbr\u003e\nDimensions: 3 in\u003cbr\u003e\nApplication: Forced-air furnaces, central heating systems, and HVAC air handlers designed to prevent system overheating.\u003cbr\u003e\nSpecifications: Opening Temperature: 190°F; Temperature Differential: 30°F; Switch Type: Normally Closed (NC); Reset Type: Automatic.","brand":"BCFurnace","offers":[{"title":"3\" HIGH LIMIT SWITCH L190-30F \/ 543-018","offer_id":47251272499485,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L190-30F \/ 1NT23L-2177","offer_id":47251272597789,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L190-30F \/ C340366P02","offer_id":47251272565021,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L190-30F \/ L190-30F.","offer_id":47251272663325,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L190-30F \/ SWT01612","offer_id":47251272532253,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L190-30F \/ SWT1612","offer_id":47251272630557,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/7298\/9981\/files\/2a2cbfb5b27f4fc3acf868534505496a.webp?v=1773958050"},{"product_id":"543-022","title":"543-022","description":"Maintain the safety and performance of your home heating system with this high-quality 3-inch high limit control switch. This essential safety sensor is designed to monitor the heat exchanger temperature within your furnace or HVAC unit, preventing hazardous overheating. When temperatures reach the calibrated 160°F limit, the switch interrupts power to the heating element or gas valve, protecting your equipment from damage. It features a 30°F differential reset, meaning it will automatically restore the circuit once the unit has cooled to a safe operating temperature. Ideal for repairing furnaces that are overheating, short cycling, or experiencing blower motor issues, this durable thermal limit control ensures your heating system operates within safe parameters. Its 3-inch probe design allows for accurate temperature sensing in the airflow stream of most standard forced-air systems.\u003cbr\u003e\nType: High Limit Control Switch\u003cbr\u003e\nSize: 3-inch probe depth\u003cbr\u003e\nDimensions: 3 inches\u003cbr\u003e\nApplication: Residential gas and electric furnaces, air handlers, and forced-air heating systems.\u003cbr\u003e\nSpecifications: Trip Temperature: 160°F; Reset Differential: 30°F; Reset Type: Automatic; Contact Configuration: Single Pole Single Throw (SPST).","brand":"BCFurnace","offers":[{"title":"3\" HIGH LIMIT SWITCH L160-30F \/ 543-022","offer_id":47251273613597,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L160-30F \/ L160-30F.","offer_id":47251273711901,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L160-30F \/ SWT01651","offer_id":47251273646365,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L160-30F \/ SWT1651","offer_id":47251273679133,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/7298\/9981\/files\/09e2896744a845769821616cd363986a.webp?v=1773958051"},{"product_id":"543-017","title":"543-017","description":"This premium 3-inch high limit switch is an essential safety component for residential and commercial forced-air heating systems. Designed to monitor internal temperatures within the furnace heat exchanger, this L180-30F control switch acts as a critical fail-safe by automatically interrupting the heating cycle if the unit exceeds safe operating temperatures. Engineered for reliability, the switch features a normally closed circuit that opens at 180 degrees Fahrenheit and resets once the temperature drops by 30 degrees. Replacing a faulty limit sensor is vital for preventing equipment damage and ensuring the safe, efficient operation of your HVAC system. This durable temperature-sensing probe is a standard requirement for maintaining optimal airflow safety and protecting against overheating in modern gas and electric furnaces.\u003cbr\u003e\nType: High Limit Control Switch\u003cbr\u003e\nSize: 3-inch insertion depth\u003cbr\u003e\nDimensions: 3 inches\u003cbr\u003e\nApplication: Used as a primary safety thermal cutout in gas furnaces, electric furnaces, and HVAC air handlers to prevent heat exchanger overheating.\u003cbr\u003e\nSpecifications: Temperature Rating: Opens at 180°F, Closes at 150°F (30°F Differential); Circuitry: Normally Closed (NC); Mounting: Flange mount with 3-inch probe insertion.","brand":"BCFurnace","offers":[{"title":"3\" HIGH LIMIT SWITCH L180-30F \/ 543-017","offer_id":47251275710749,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L180-30F \/ C340366P06","offer_id":47251275776285,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L180-30F \/ L180-30F.","offer_id":47251275809053,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L180-30F \/ SWT01365","offer_id":47251275874589,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L180-30F \/ SWT01635","offer_id":47251275743517,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L180-30F \/ SWT1365","offer_id":47251275907357,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L180-30F \/ SWT1635","offer_id":47251275841821,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/7298\/9981\/files\/0d27d11325fc4fbf8112e3518b304c27.webp?v=1773958049"},{"product_id":"543-021","title":"543-021","description":"The 3\" High Limit Switch L150-30F is a vital safety control component used in residential and commercial heating systems. Designed to monitor internal temperatures, this thermal limit switch acts as a failsafe by automatically interrupting the electrical circuit if the furnace or air handler exceeds its safe operating limit of 150°F. This prevents overheating, protects the heat exchanger, and ensures the overall safety of your HVAC system. Once the internal temperature cools down by a 30°F differential, the switch automatically resets to restore normal operation. Ideal for repair and maintenance of forced-air furnaces, this high-quality replacement switch ensures reliable performance, consistent temperature regulation, and longevity for your heating equipment.\u003cbr\u003e\nType: High Limit Control Switch\u003cbr\u003e\nSize: 3-inch profile\u003cbr\u003e\nDimensions: 3 inches\u003cbr\u003e\nApplication: Used in forced-air furnaces, gas heating units, and HVAC air handlers to provide over-temperature protection and system safety.\u003cbr\u003e\nSpecifications: Opening Temperature: 150°F; Reset Differential: 30°F (Closes at 120°F); Reset Type: Automatic; Contact Configuration: Normally Closed (NC).","brand":"BCFurnace","offers":[{"title":"3\" HIGH LIMIT SWITCH L150-30F \/ 543-021","offer_id":47251276136733,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L150-30F \/ 46105-001","offer_id":47251276398877,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L150-30F \/ 46105001","offer_id":47251276431645,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L150-30F \/ 56W20","offer_id":47251276300573,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L150-30F \/ 56W2001","offer_id":47251276366109,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L150-30F \/ C340366P17","offer_id":47251276267805,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L150-30F \/ L150-30F.","offer_id":47251276235037,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L150-30F \/ R46105-001","offer_id":47251276333341,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L150-30F \/ R46105001","offer_id":47251276464413,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L150-30F \/ SWT03411","offer_id":47251276169501,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L150-30F \/ SWT3411","offer_id":47251276202269,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/7298\/9981\/files\/39c3002a2473412ab05bb6d06a09e731.webp?v=1773958016"},{"product_id":"543-025","title":"543-025","description":"The 3\" High Limit Switch L190-30F is a critical safety component designed for residential and commercial HVAC systems and forced-air furnaces. This thermal limit control monitors the heat levels within the appliance's plenum or heat exchanger, acting as a failsafe to prevent overheating. If the temperature exceeds safe operating limits, the switch automatically opens the circuit to shut down the heating element or burner. Featuring an L190-30F calibration, this switch is engineered to trip at 190°F and reset once the temperature cools by 30°F (closing at 160°F). Replacing a malfunctioning high limit sensor is essential for restoring proper heating cycles and protecting your furnace from internal damage. This part is a standard solution for technicians and homeowners looking to fix heating units that are short-cycling or failing to stay on due to safety trips.\u003cbr\u003e\nType: High Limit Control Switch\u003cbr\u003e\nSize: 3-inch\u003cbr\u003e\nApplication: HVAC systems, gas furnaces, electric heaters, and central heating units requiring thermal safety monitoring.\u003cbr\u003e\nSpecifications: Opening Temperature: 190°F; Temperature Differential: 30°F (Closes at 160°F); Reset Type: Automatic; Sensor Type: 3-inch insertion probe.","brand":"BCFurnace","offers":[{"title":"3\" HIGH LIMIT SWITCH L190-30F \/ 543-025","offer_id":47251277480221,"sku":null,"price":229.03,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L190-30F \/ 025-29041-012","offer_id":47251277512989,"sku":null,"price":229.03,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L190-30F \/ 02529041012","offer_id":47251277578525,"sku":null,"price":229.03,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L190-30F \/ 208W48","offer_id":47251277644061,"sku":null,"price":229.03,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L190-30F \/ 2702-3181\/A","offer_id":47251277742365,"sku":null,"price":229.03,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L190-30F \/ 27023181\/A","offer_id":47251277775133,"sku":null,"price":229.03,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L190-30F \/ 2702-318P\/A","offer_id":47251277873437,"sku":null,"price":229.03,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L190-30F \/ 2702318P\/A","offer_id":47251277906205,"sku":null,"price":229.03,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L190-30F \/ S1-025-29041-012","offer_id":47251277545757,"sku":null,"price":229.03,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L190-30F \/ S1-02529041012","offer_id":47251277611293,"sku":null,"price":229.03,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L190-30F \/ S1-2702-3181\/A","offer_id":47251277676829,"sku":null,"price":229.03,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L190-30F \/ S1-27023181\/A","offer_id":47251277709597,"sku":null,"price":229.03,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L190-30F \/ S1-2702-318P\/A","offer_id":47251277807901,"sku":null,"price":229.03,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L190-30F \/ S1-2702318P\/A","offer_id":47251277840669,"sku":null,"price":229.03,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/7298\/9981\/files\/2232fe7bb8024f59bd1f35c18e89b05f.webp?v=1773961615"},{"product_id":"543-026","title":"543-026","description":"The 3-inch High Limit Switch is a vital safety component designed for HVAC systems and gas furnaces. This thermal limit control monitors the internal temperature of the furnace's heat exchanger, acting as a failsafe to prevent overheating. When the temperature exceeds the safe operating threshold, the switch opens the electrical circuit to shut down the burners, protecting the appliance from damage and ensuring home safety. This specific switch is a normally closed sensor that triggers at 180°F and features a 30°F differential for the reset cycle. It is an essential replacement part if your heating system is short-cycling, the blower fan is running constantly, or the furnace fails to stay ignited due to a tripped safety sensor.\u003cbr\u003e\nType: High Limit Control Switch\u003cbr\u003e\nSize: 3-inch probe length\u003cbr\u003e\nDimensions: 3 inches (insertion depth)\u003cbr\u003e\nApplication: Forced-air furnaces, residential heating systems, and HVAC units requiring a fixed-temperature thermal cutout.\u003cbr\u003e\nSpecifications: Cut-out temperature: 180°F; Cut-in temperature: 150°F; Differential: 30°F; Automatic reset; 3-inch insertion probe.","brand":"BCFurnace","offers":[{"title":"3\" HIGH LIMIT SWITCH L180-30F \/ 543-026","offer_id":47251277971741,"sku":null,"price":138.76,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L180-30F \/ 025-29041-011","offer_id":47251278004509,"sku":null,"price":138.76,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L180-30F \/ 02529041011","offer_id":47251278070045,"sku":null,"price":138.76,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L180-30F \/ 025-29041-711","offer_id":47251278135581,"sku":null,"price":138.76,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L180-30F \/ 02529041711","offer_id":47251278201117,"sku":null,"price":138.76,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L180-30F \/ L180-30F..","offer_id":47251278266653,"sku":null,"price":138.76,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L180-30F \/ S1-025-29041-011","offer_id":47251278037277,"sku":null,"price":138.76,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L180-30F \/ S1-02529041011","offer_id":47251278102813,"sku":null,"price":138.76,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L180-30F \/ S1-025-29041-711","offer_id":47251278168349,"sku":null,"price":138.76,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L180-30F \/ S1-02529041711","offer_id":47251278233885,"sku":null,"price":138.76,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/7298\/9981\/files\/bddef02af34745e9969149bd18b7b69f.webp?v=1773967206"},{"product_id":"543-024","title":"543-024","description":"The L160-30F High Limit Switch is a critical safety component designed for forced-air heating systems and furnaces. This 3-inch limit control sensor monitors the internal temperature of the heat exchanger, acting as a vital fail-safe by automatically cutting power to the burner or heating elements if the unit exceeds safe operating limits. This specific switch is engineered to open the circuit at 160°F and features a 30°F differential, meaning it will reset once the system has cooled to a safe temperature. If your furnace is short-cycling or failing to stay on, a malfunctioning thermal limit switch may be the cause. This durable replacement part ensures your HVAC system operates efficiently while preventing overheating and protecting your home from fire hazards.\u003cbr\u003e\nType: High Limit Control Switch\u003cbr\u003e\nSize: 3-inch insertion\u003cbr\u003e\nDimensions: 3 in\u003cbr\u003e\nApplication: Commonly used in residential gas furnaces, electric air handlers, and forced-air heating equipment as a primary thermal safety cutoff.\u003cbr\u003e\nSpecifications: Open Temperature: 160°F; Reset Temperature: 130°F (30°F Differential); Normally Closed (NC) circuit; Fixed temperature setting.","brand":"BCFurnace","offers":[{"title":"3\" HIGH LIMIT SWITCH L160-30F \/ 543-024","offer_id":47251279675677,"sku":null,"price":148.87,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L160-30F \/ 025-29041-004","offer_id":47251279708445,"sku":null,"price":148.87,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L160-30F \/ 02529041004","offer_id":47251279773981,"sku":null,"price":148.87,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L160-30F \/ 208W31","offer_id":47251279839517,"sku":null,"price":148.87,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L160-30F \/ 313610655","offer_id":47251279872285,"sku":null,"price":148.87,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L160-30F \/ L160-30F..","offer_id":47251279905053,"sku":null,"price":148.87,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L160-30F \/ S1-025-29041-004","offer_id":47251279741213,"sku":null,"price":148.87,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L160-30F \/ S1-02529041004","offer_id":47251279806749,"sku":null,"price":148.87,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/7298\/9981\/files\/e12907ba40fd4f9aaa05b132dbedd0b6.webp?v=1773967213"},{"product_id":"543-029","title":"543-029","description":"This 3-inch high limit switch is a vital safety component designed for residential and commercial heating systems. Functioning as a thermal safeguard, this high limit control switch monitors the internal temperature of your furnace or HVAC unit to prevent overheating. When temperatures exceed the safe operating threshold, the switch automatically interrupts the electrical circuit, protecting your equipment from damage and ensuring home safety. Featuring a reliable temperature setting with a built-in differential for automatic resetting, this component is a common replacement part for malfunctioning blowers or heating cycles. It is an essential repair part for maintaining the efficiency and longevity of forced air heating systems.\u003cbr\u003e\nType: High Limit Control Switch\u003cbr\u003e\nSize: 3-inch\u003cbr\u003e\nDimensions: 3 in\u003cbr\u003e\nApplication: Used as a primary safety limit in gas and electric furnaces, HVAC systems, and forced air heating units to prevent heat exchanger damage.\u003cbr\u003e\nSpecifications: L170-30F: Opens at 170°F on temperature rise, closes with a 30°F differential; 3-inch insertion depth; normally closed configuration.","brand":"BCFurnace","offers":[{"title":"3\" HIGH LIMIT SWITCH L170-30F \/ 543-029","offer_id":47251287900445,"sku":null,"price":110.18,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L170-30F \/ 025-29041-007","offer_id":47251287998749,"sku":null,"price":110.18,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L170-30F \/ 02529041007","offer_id":47251288031517,"sku":null,"price":110.18,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L170-30F \/ L170-30F..","offer_id":47251288064285,"sku":null,"price":110.18,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L170-30F \/ S1-025-29041-007","offer_id":47251287965981,"sku":null,"price":110.18,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L170-30F \/ S1-02529041007","offer_id":47251287933213,"sku":null,"price":110.18,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/7298\/9981\/files\/7612ae3f7c1f4beb91b8ad2bea60f1de.webp?v=1773958089"},{"product_id":"543-028","title":"543-028","description":"This 3-inch high limit switch is a vital safety component designed for modern HVAC systems and forced-air furnaces. Engineered to prevent equipment overheating, the L150-30F thermal control monitors the internal plenum temperature of your heating unit. When the temperature exceeds the safe operating threshold of 150°F, the switch automatically opens to break the electrical circuit, protecting the heat exchanger and surrounding components from thermal damage. Once the system cools down by 30°F, the switch resets to restore normal functionality. This replacement sensor is essential for maintaining furnace reliability, ensuring home safety, and optimizing the performance of your residential or commercial heating system.\u003cbr\u003e\nType: High Limit Control Switch\u003cbr\u003e\nSize: 3-inch probe length\u003cbr\u003e\nDimensions: 3 inches\u003cbr\u003e\nApplication: Used as a safety cutout in residential furnaces, air handlers, and various HVAC heating applications to prevent system overheating.\u003cbr\u003e\nSpecifications: Open Temperature: 150°F; Close Temperature: 120°F; Temperature Differential: 30°F; Automatic reset; SPST (Single Pole Single Throw) configuration.","brand":"BCFurnace","offers":[{"title":"3\" HIGH LIMIT SWITCH L150-30F \/ 543-028","offer_id":47251288228125,"sku":null,"price":123.38,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L150-30F \/ 025-29041-002","offer_id":47251288326429,"sku":null,"price":123.38,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L150-30F \/ 02529041002","offer_id":47251288359197,"sku":null,"price":123.38,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L150-30F \/ L150-30F..","offer_id":47251288391965,"sku":null,"price":123.38,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L150-30F \/ S1-025-29041-002","offer_id":47251288293661,"sku":null,"price":123.38,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L150-30F \/ S1-02529041002","offer_id":47251288260893,"sku":null,"price":123.38,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L150-30F \/ SWT01278","offer_id":47251288424733,"sku":null,"price":123.38,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L150-30F \/ SWT1278","offer_id":47251288457501,"sku":null,"price":123.38,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/7298\/9981\/files\/c6a935773da041279004094d49db687e.webp?v=1773958104"},{"product_id":"543-023","title":"543-023","description":"Ensure the safety and efficiency of your heating system with this professional-grade furnace high limit switch. Designed as a critical safety component for forced-air gas furnaces and HVAC units, this thermal limit control prevents equipment damage by monitoring heat exchanger temperatures. If the system reaches an unsafe temperature, the switch automatically opens the circuit to shut down the heating element or gas valve, protecting your home and appliance from overheating. This high-limit sensor features a 3-inch insertion probe and is calibrated to trip at 250°F with a 30°F reset differential, making it an essential replacement part for restoring reliable climate control and system performance.\u003cbr\u003e\nType: Furnace High Limit Control Switch\u003cbr\u003e\nSize: 3-inch probe length\u003cbr\u003e\nDimensions: 3 inches × Not specified × Not specified\u003cbr\u003e\nApplication: Used in residential gas furnaces, forced-air heating systems, and HVAC equipment as a primary safety limit to prevent heat exchanger overheating.\u003cbr\u003e\nSpecifications: Cut-out temperature: 250°F; Differential: 30°F (closes at 220°F); Circuit: Normally Closed (NC); Component type: 3-inch insertion thermostatic disc switch.","brand":"BCFurnace","offers":[{"title":"3\" HIGH LIMIT SWITCH L250-30F \/ 543-023","offer_id":47251288621341,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L250-30F \/ 46105-012","offer_id":47251288719645,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L250-30F \/ 56W25","offer_id":47251288654109,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L250-30F \/ 56W2501","offer_id":47251288686877,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L250-30F \/ C340056P06","offer_id":47251288785181,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L250-30F \/ L250-30F","offer_id":47251288916253,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L250-30F \/ R46105-012","offer_id":47251288752413,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L250-30F \/ R46105012","offer_id":47251288949021,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L250-30F \/ SWT01272","offer_id":47251288817949,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L250-30F \/ SWT1272","offer_id":47251288850717,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/7298\/9981\/files\/aa90eac8d9c14fc88a64ff031ae7f443.webp?v=1773958087"},{"product_id":"543-240","title":"543-240","description":"Ensure your heating system operates safely and efficiently with this high-quality 3-inch high limit control switch. Designed to monitor the internal temperature of your furnace or heating unit, this thermal safety switch acts as a critical protection component. It is engineered to automatically cut power to the burners if the heat exchanger exceeds safe operating temperatures, preventing overheating and potential equipment damage. Featuring standard L240-30F specifications, it opens the circuit at 240°F and automatically resets once the temperature drops, ensuring consistent performance. This reliable replacement part is essential for routine HVAC maintenance and furnace repair, providing a necessary layer of protection for residential and commercial heating systems.\u003cbr\u003e\nType: HVAC High Limit Control Switch\u003cbr\u003e\nSize: 3-inch insertion depth\u003cbr\u003e\nDimensions: 3 inches\u003cbr\u003e\nApplication: Primary safety control for gas furnaces and forced-air heating systems designed to prevent heat exchanger overheating.\u003cbr\u003e\nSpecifications: Temperature Limit: 240°F (Open); Differential: 30°F (Close at 210°F); Automatic Reset; Fixed Temperature Operation.","brand":"BCFurnace","offers":[{"title":"3\" HIGH LIMIT SWITCH L240-30F \/ 543-240","offer_id":47251328467229,"sku":null,"price":98.97,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L240-30F \/ 21L89","offer_id":47251328499997,"sku":null,"price":98.97,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L240-30F \/ 21L8901","offer_id":47251328598301,"sku":null,"price":98.97,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L240-30F \/ 27J28","offer_id":47251328532765,"sku":null,"price":98.97,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L240-30F \/ 27J2801","offer_id":47251328565533,"sku":null,"price":98.97,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L240-30F \/ 38M69","offer_id":47251328696605,"sku":null,"price":98.97,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L240-30F \/ 38M6901","offer_id":47251328729373,"sku":null,"price":98.97,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L240-30F \/ 3L09-13","offer_id":47251328663837,"sku":null,"price":98.97,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L240-30F \/ HH12ZB230","offer_id":51839651905821,"sku":null,"price":98.97,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L240-30F \/ L240-30F","offer_id":47251328631069,"sku":null,"price":98.97,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/7298\/9981\/files\/00c43d35ef5144a58eaa8909e60a5964.webp?v=1773958228"},{"product_id":"543-506","title":"543-506","description":"Ensure your heating system operates safely and efficiently with this 5-inch Fan and Limit Switch. This combination control is a vital component for forced-air furnaces, serving two primary functions: regulating the blower fan and providing a critical high-limit safety cut-off. The adjustable fan temperature settings allow you to customize the blower's cycle times, improving energy efficiency and air distribution throughout your home. Meanwhile, the high-limit switch monitors for overheating, automatically shutting off the burner to protect the heat exchanger from damage. Ideal for HVAC repairs or seasonal maintenance, this durable switch ensures consistent performance and peace of mind by preventing the furnace from exceeding safe operating temperatures.\u003cbr\u003e\nType: Fan and Limit Control Switch\u003cbr\u003e\nSize: 5-inch sensing probe\u003cbr\u003e\nDimensions: 5 inches (probe length)\u003cbr\u003e\nApplication: Designed for use in forced-air furnaces, residential heating systems, and HVAC units to manage blower motor cycles and provide high-temperature safety protection.\u003cbr\u003e\nSpecifications: Adjustable fan-on and fan-off temperature differentials; manual or automatic high-limit safety stop; combination fan and limit control; 5-inch insertion probe for plenum temperature sensing.","brand":"BCFurnace","offers":[{"title":"5\"  FAN AND LIMIT SWITCH ADJUSTABLE FAN TEMP \/ 543-506","offer_id":49018631291165,"sku":null,"price":396.32,"currency_code":"CAD","in_stock":true},{"title":"5\"  FAN AND LIMIT SWITCH ADJUSTABLE FAN TEMP \/ 13P94","offer_id":49018631323933,"sku":null,"price":396.32,"currency_code":"CAD","in_stock":true},{"title":"5\"  FAN AND LIMIT SWITCH ADJUSTABLE FAN TEMP \/ 5D51-35","offer_id":49762958377245,"sku":null,"price":396.32,"currency_code":"CAD","in_stock":true},{"title":"5\"  FAN AND LIMIT SWITCH ADJUSTABLE FAN TEMP \/ L4064 B 2228","offer_id":49018631651613,"sku":null,"price":396.32,"currency_code":"CAD","in_stock":true},{"title":"5\"  FAN AND LIMIT SWITCH ADJUSTABLE FAN TEMP \/ L4064-B-2228","offer_id":49018631684381,"sku":null,"price":396.32,"currency_code":"CAD","in_stock":true},{"title":"5\"  FAN AND LIMIT SWITCH ADJUSTABLE FAN TEMP \/ L4064B 2228","offer_id":49018631848221,"sku":null,"price":396.32,"currency_code":"CAD","in_stock":true},{"title":"5\"  FAN AND LIMIT SWITCH ADJUSTABLE FAN TEMP \/ L4064B-2228","offer_id":49018631520541,"sku":null,"price":396.32,"currency_code":"CAD","in_stock":true},{"title":"5\"  FAN AND LIMIT SWITCH ADJUSTABLE FAN TEMP \/ L4064B2228","offer_id":49018631815453,"sku":null,"price":396.32,"currency_code":"CAD","in_stock":true},{"title":"5\"  FAN AND LIMIT SWITCH ADJUSTABLE FAN TEMP \/ L4064B2228\/U","offer_id":50417039409437,"sku":null,"price":396.32,"currency_code":"CAD","in_stock":true},{"title":"5\"  FAN AND LIMIT SWITCH ADJUSTABLE FAN TEMP \/ L4064 B 2897","offer_id":49018631389469,"sku":null,"price":396.32,"currency_code":"CAD","in_stock":true},{"title":"5\"  FAN AND LIMIT SWITCH ADJUSTABLE FAN TEMP \/ L4064-B-2897","offer_id":49018631586077,"sku":null,"price":396.32,"currency_code":"CAD","in_stock":true},{"title":"5\"  FAN AND LIMIT SWITCH ADJUSTABLE FAN TEMP \/ L4064B 2897","offer_id":49018631553309,"sku":null,"price":396.32,"currency_code":"CAD","in_stock":true},{"title":"5\"  FAN AND LIMIT SWITCH ADJUSTABLE FAN TEMP \/ L4064B-2897","offer_id":49018631487773,"sku":null,"price":396.32,"currency_code":"CAD","in_stock":true},{"title":"5\"  FAN AND LIMIT SWITCH ADJUSTABLE FAN TEMP \/ L4064B2897","offer_id":49018631422237,"sku":null,"price":396.32,"currency_code":"CAD","in_stock":true},{"title":"5\"  FAN AND LIMIT SWITCH ADJUSTABLE FAN TEMP \/ L4064B2947","offer_id":49018631749917,"sku":null,"price":396.32,"currency_code":"CAD","in_stock":true},{"title":"5\"  FAN AND LIMIT SWITCH ADJUSTABLE FAN TEMP \/ L4064 B 3010","offer_id":49018631356701,"sku":null,"price":396.32,"currency_code":"CAD","in_stock":true},{"title":"5\"  FAN AND LIMIT SWITCH ADJUSTABLE FAN TEMP \/ L4064-B-3010","offer_id":49018631618845,"sku":null,"price":396.32,"currency_code":"CAD","in_stock":true},{"title":"5\"  FAN AND LIMIT SWITCH ADJUSTABLE FAN TEMP \/ L4064B 3010","offer_id":49018631717149,"sku":null,"price":396.32,"currency_code":"CAD","in_stock":true},{"title":"5\"  FAN AND LIMIT SWITCH ADJUSTABLE FAN TEMP \/ L4064B-3010","offer_id":49018631455005,"sku":null,"price":396.32,"currency_code":"CAD","in_stock":true},{"title":"5\"  FAN AND LIMIT SWITCH ADJUSTABLE FAN TEMP \/ L4064B3010","offer_id":49018631782685,"sku":null,"price":396.32,"currency_code":"CAD","in_stock":true},{"title":"5\"  FAN AND LIMIT SWITCH ADJUSTABLE FAN TEMP \/ L4064W1080","offer_id":50901308637469,"sku":null,"price":396.32,"currency_code":"CAD","in_stock":true},{"title":"5\"  FAN AND LIMIT SWITCH ADJUSTABLE FAN TEMP \/ S1-02525907700","offer_id":50414001848605,"sku":null,"price":396.32,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/7298\/9981\/files\/ac46cab9da0e4ab382db25197c69213b.webp?v=1773961211"},{"product_id":"543-010","title":"543-010","description":"Ensure the safety and efficiency of your heating system with this premium 3-inch high limit switch. Designed as a vital safety cut-out for residential furnaces and HVAC units, this thermal limit control prevents equipment damage by monitoring heat exchanger temperatures. The switch is engineered to open the electrical circuit if the internal temperature reaches a 210°F threshold, effectively shutting down the burner to prevent overheating. Featuring a 30°F differential, it automatically resets once the system has cooled to a safe operating level. This reliable replacement part is essential for maintaining consistent climate control and protecting your home's heating infrastructure from thermal stress.\u003cbr\u003e\nType: High Limit Control Switch\u003cbr\u003e\nSize: 3-inch probe length\u003cbr\u003e\nDimensions: 3 in\u003cbr\u003e\nApplication: Primary safety limit for residential gas furnaces, forced-air heating systems, and HVAC equipment to prevent heat exchanger overheating.\u003cbr\u003e\nSpecifications: Operating Temperature: Opens at 210°F; Differential: Closes at 180°F (30°F drop); Circuit: Normally Closed (NC); Reset Type: Automatic.","brand":"BCFurnace","offers":[{"title":"3\" HIGH LIMIT SWITCH L210-30F \/ 543-010","offer_id":47251329876253,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L210-30F \/ 83L90","offer_id":47251330040093,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L210-30F \/ 83L9001","offer_id":47251330007325,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L210-30F \/ C340056P09","offer_id":47251329974557,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L210-30F \/ SWT01263","offer_id":47251329909021,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L210-30F \/ SWT1263","offer_id":47251329941789,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/7298\/9981\/files\/16b801721e354662a404ab6fe610a536.webp?v=1773958226"},{"product_id":"543-040","title":"543-040","description":"This 3-inch High Limit Switch L230-30F is a vital safety component designed for residential and commercial heating systems. Functioning as a thermal cutout, this switch monitors the internal temperature of your furnace or air handler to prevent dangerous overheating. If the heat exchanger reaches the critical threshold of 230°F, the switch automatically opens to break the electrical circuit and shut down the burners, protecting your HVAC equipment from damage. Once the unit cools by 30°F, the switch resets to allow for normal operation. This replacement limit control is an essential part for maintaining the safety and performance of forced-air gas furnaces. If your heating system is short-cycling or failing to stay lit, a faulty safety sensor may be the cause, and this reliable L230-30F switch ensures your system stays within safe thermal parameters.\u003cbr\u003e\nType: Furnace High Limit Control Switch\u003cbr\u003e\nSize: 3-inch insertion depth\u003cbr\u003e\nDimensions: 3 in\u003cbr\u003e\nApplication: Used as a safety limit control in gas furnaces and forced-air heating systems to monitor heat exchanger temperatures.\u003cbr\u003e\nSpecifications: Temperature Limit: Opens at 230°F; Differential: 30°F (Closes at 200°F); Automatic reset; Single-pole, single-throw (SPST) configuration.","brand":"BCFurnace","offers":[{"title":"3\" HIGH LIMIT SWITCH L230-30F \/ 543-040","offer_id":47251333382429,"sku":null,"price":87.45,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L230-30F \/ 49L87","offer_id":47251333415197,"sku":null,"price":87.45,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L230-30F \/ 49L8701","offer_id":47251333447965,"sku":null,"price":87.45,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L230-30F \/ L230-30","offer_id":47251333480733,"sku":null,"price":87.45,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/7298\/9981\/files\/3f8e649b01004b03bc62ebe90b1b625f.webp?v=1773958301"},{"product_id":"543-004","title":"543-004","description":"Ensure your heating system operates safely with this premium 3-inch high limit switch. Designed as a critical safety component for residential gas furnaces and forced-air HVAC systems, this thermal limit control prevents dangerous overheating by monitoring internal plenum temperatures. The switch is engineered to automatically interrupt the heating cycle when temperatures reach the 170-degree Fahrenheit threshold, protecting your heat exchanger and home from potential damage. Featuring a 30-degree differential for a reliable automatic reset once the unit cools to 140 degrees, this high limit sensor is an essential replacement part for restoring furnace safety and efficiency. Ideal for HVAC maintenance and heater repairs, this durable limit control switch provides consistent climate control performance and equipment protection.\u003cbr\u003e\nType: High Limit Control Switch\u003cbr\u003e\nSize: 3-inch probe\u003cbr\u003e\nDimensions: 3 in\u003cbr\u003e\nApplication: Residential gas furnaces, forced-air heating systems, and HVAC units requiring thermal overload protection.\u003cbr\u003e\nSpecifications: Open Temperature: 170°F; Close Temperature: 140°F; 30°F Differential; Automatic Reset; L170-30F Calibration.","brand":"BCFurnace","offers":[{"title":"3\" HIGH LIMIT SWITCH L170-30F \/ 543-004","offer_id":47251337347357,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L170-30F \/ 25M59","offer_id":47251337511197,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L170-30F \/ 25M901","offer_id":47251337543965,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L170-30F \/ C340056P02","offer_id":47251337445661,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L170-30F \/ L170-30F","offer_id":47251337478429,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L170-30F \/ SWT01258","offer_id":47251337380125,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L170-30F \/ SWT1258","offer_id":47251337412893,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/7298\/9981\/files\/5c89be8c0b404a7c92d33575b70e44b0.webp?v=1773958256"},{"product_id":"547-504","title":"547-504","description":"Ensure the safety and efficiency of your heating system with this 3-inch adjustable high limit switch. Designed as a critical thermal safety component for furnaces and HVAC equipment, this limit control switch monitors internal temperatures to prevent overheating. It features a customizable temperature setting ranging from 180°F to 250°F, allowing for precise calibration based on your specific heating requirements. If the appliance reaches the designated temperature threshold, the switch automatically breaks the electrical circuit, protecting the unit from potential damage and ensuring safe operation. This versatile high-limit sensor is an essential replacement part for maintaining residential and commercial forced-air systems and heaters.\u003cbr\u003e\nType: High Limit Control Switch\u003cbr\u003e\nSize: 3-inch probe depth\u003cbr\u003e\nDimensions: 3 in\u003cbr\u003e\nApplication: Commonly used in residential furnaces, forced-air heating systems, boilers, and industrial HVAC equipment to provide overheating protection.\u003cbr\u003e\nSpecifications: Temperature Range: 180°F to 250°F (Adjustable); Switch Configuration: Normally Closed (NC) that opens on temperature rise; Insertion Depth: 3 inches.","brand":"BCFurnace","offers":[{"title":"3\" HIGH LIMIT SWITCH ADJUSTABLE 180F - 250F \/ 547-504","offer_id":47429630165277,"sku":null,"price":169.68,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH ADJUSTABLE 180F - 250F \/ 24T01B","offer_id":47429630656797,"sku":null,"price":169.68,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH ADJUSTABLE 180F - 250F \/ 3AHL9","offer_id":47429630984477,"sku":null,"price":169.68,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH ADJUSTABLE 180F - 250F \/ 5C01","offer_id":47429630624029,"sku":null,"price":169.68,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH ADJUSTABLE 180F - 250F \/ 5C02","offer_id":47429631082781,"sku":null,"price":169.68,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH ADJUSTABLE 180F - 250F \/ 5C41","offer_id":47429631148317,"sku":null,"price":169.68,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH ADJUSTABLE 180F - 250F \/ CA805","offer_id":47429630591261,"sku":null,"price":169.68,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH ADJUSTABLE 180F - 250F \/ CA806","offer_id":47429630296349,"sku":null,"price":169.68,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH ADJUSTABLE 180F - 250F \/ CA810","offer_id":47429630722333,"sku":null,"price":169.68,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH ADJUSTABLE 180F - 250F \/ CR2992B111","offer_id":47429630460189,"sku":null,"price":169.68,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH ADJUSTABLE 180F - 250F \/ L22","offer_id":47429630689565,"sku":null,"price":169.68,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH ADJUSTABLE 180F - 250F \/ L245A","offer_id":47429630558493,"sku":null,"price":169.68,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH ADJUSTABLE 180F - 250F \/ L4029A","offer_id":47429630329117,"sku":null,"price":169.68,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH ADJUSTABLE 180F - 250F \/ L4029B","offer_id":47429630230813,"sku":null,"price":169.68,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH ADJUSTABLE 180F - 250F \/ L4029C","offer_id":47429630755101,"sku":null,"price":169.68,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH ADJUSTABLE 180F - 250F \/ L4029D","offer_id":47429631246621,"sku":null,"price":169.68,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH ADJUSTABLE 180F - 250F \/ L4030","offer_id":47429630853405,"sku":null,"price":169.68,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH ADJUSTABLE 180F - 250F \/ L4069A","offer_id":47429631181085,"sku":null,"price":169.68,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH ADJUSTABLE 180F - 250F \/ L445A","offer_id":47429630820637,"sku":null,"price":169.68,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH ADJUSTABLE 180F - 250F \/ L445B","offer_id":47429631115549,"sku":null,"price":169.68,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH ADJUSTABLE 180F - 250F \/ L492","offer_id":47429630886173,"sku":null,"price":169.68,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH ADJUSTABLE 180F - 250F \/ L59-3BT","offer_id":47429630361885,"sku":null,"price":169.68,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH ADJUSTABLE 180F - 250F \/ L597BT","offer_id":47429630787869,"sku":null,"price":169.68,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH ADJUSTABLE 180F - 250F \/ L722","offer_id":47429630198045,"sku":null,"price":169.68,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH ADJUSTABLE 180F - 250F \/ LA445A","offer_id":47429631050013,"sku":null,"price":169.68,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH ADJUSTABLE 180F - 250F \/ LA845A","offer_id":47429631017245,"sku":null,"price":169.68,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH ADJUSTABLE 180F - 250F \/ LP1","offer_id":47429630492957,"sku":null,"price":169.68,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH ADJUSTABLE 180F - 250F \/ LP2","offer_id":47429630263581,"sku":null,"price":169.68,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH ADJUSTABLE 180F - 250F \/ M41","offer_id":47429630394653,"sku":null,"price":169.68,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH ADJUSTABLE 180F - 250F \/ M51","offer_id":47429630427421,"sku":null,"price":169.68,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH ADJUSTABLE 180F - 250F \/ S45A1A3A1","offer_id":47429630951709,"sku":null,"price":169.68,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH ADJUSTABLE 180F - 250F \/ S45A1A3A3","offer_id":47429630525725,"sku":null,"price":169.68,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH ADJUSTABLE 180F - 250F \/ S45BA1A3A1","offer_id":47429631213853,"sku":null,"price":169.68,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH ADJUSTABLE 180F - 250F \/ S45BA1A3A3","offer_id":47429630918941,"sku":null,"price":169.68,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/7298\/9981\/files\/44ba8025bd8c46e5adb1f2ce3a8af27f.webp?v=1773967250"},{"product_id":"543-011","title":"543-011","description":"This premium 3-inch high limit switch is an essential safety component for residential furnaces and HVAC heating systems. Designed to monitor internal air temperatures, this thermal limit control acts as a critical fail-safe by automatically breaking the electrical circuit if the furnace heat exchanger reaches an unsafe temperature. Specifically calibrated to open at 135°F and reset once the temperature drops by 30°F, it prevents overheating, protects the heat exchanger from damage, and ensures the safe operation of your heating equipment. If your furnace blower runs continuously or the heating cycle cuts out prematurely, replacing a faulty high limit sensor is a common and necessary repair for maintaining home safety and system efficiency.\u003cbr\u003e\nType: High Limit Control Switch\u003cbr\u003e\nSize: 3-inch probe\u003cbr\u003e\nDimensions: 3 in\u003cbr\u003e\nApplication: Commonly used in forced-air furnaces, HVAC blower assemblies, and heating units as a safety cutout to prevent equipment overheating.\u003cbr\u003e\nSpecifications: Temperature Rating: Open at 135°F, Close at 105°F (30°F Differential); Mounting: Flange mount; Sensor type: Bimetal disc.","brand":"BCFurnace","offers":[{"title":"3\" HIGH LIMIT SWITCH L135-30F \/ 543-011","offer_id":47251341082909,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L135-30F \/ C340056P13","offer_id":47259057553693,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L135-30F \/ L135-30F.","offer_id":47251341213981,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L135-30F \/ SWT01275","offer_id":47251341115677,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L135-30F \/ SWT1275","offer_id":47251341148445,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/7298\/9981\/files\/5c8e866a402849f48c69acf0f6a5af50.webp?v=1773958260"},{"product_id":"543-008","title":"543-008","description":"Ensure the safety and efficiency of your heating system with this 3-inch high limit switch. Designed as a critical safety component for residential furnaces and HVAC units, this thermal limit control prevents the heat exchanger from overheating. When temperatures exceed the safe operating threshold, the switch automatically interrupts the electrical circuit to shut down the burners, protecting your equipment from damage. Once the unit cools down by the specified temperature differential, it resets to resume normal operation. This high-quality replacement part is essential for routine furnace maintenance and HVAC repairs, helping to maintain home safety while ensuring reliable performance throughout the heating season.\u003cbr\u003e\nType: High Limit Control Switch\u003cbr\u003e\nSize: 3-inch probe length\u003cbr\u003e\nDimensions: 3 in\u003cbr\u003e\nApplication: Commonly used in forced-air furnaces, HVAC systems, and heating equipment as a primary safety sensor to monitor heat exchanger temperatures and prevent thermal overload.\u003cbr\u003e\nSpecifications: Opening Temperature: 155°F; Closing Temperature: 125°F; Temperature Differential: 30°F; Circuit: Normally Closed (NC) opens on temperature rise.","brand":"BCFurnace","offers":[{"title":"3\" HIGH LIMIT SWITCH L155-30F \/ 543-008","offer_id":47251341246749,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L155-30F \/ C340056P18","offer_id":47259057586461,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L155-30F \/ L155-30F","offer_id":47251341377821,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L155-30F \/ SWT01280","offer_id":47251341279517,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L155-30F \/ SWT1280","offer_id":47251341312285,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/7298\/9981\/files\/f17ec6a7655c4543bbed35a36c74d159.webp?v=1773958258"},{"product_id":"543-502","title":"543-502","description":"This 3-inch fixed high limit control switch is a critical safety component designed for HVAC systems and forced-air furnaces. Engineered to monitor internal temperatures, this thermal limit switch prevents equipment overheating by automatically breaking the electrical circuit when the temperature reaches 120°F. The built-in auto-reset feature ensures the switch closes again once the system cools down by 30°F, allowing for seamless operation without manual resetting. This durable replacement part is essential for maintaining the safety and efficiency of residential and commercial heating units, providing reliable thermal protection against restricted airflow or blower failure.\u003cbr\u003e\nType: High Limit Control Switch\u003cbr\u003e\nSize: 3-inch probe depth\u003cbr\u003e\nDimensions: 3 in\u003cbr\u003e\nApplication: Used as a safety cutout in furnaces, heaters, and HVAC air handling units to prevent heat exchanger damage and ensure safe operating temperatures.\u003cbr\u003e\nSpecifications: Fixed temperature setting: Opens at 120°F; 30°F differential (Resets at 90°F); Automatic reset functionality; 3-inch insertion probe.","brand":"BCFurnace","offers":[{"title":"3\" CAMSTAT FIXED LIMIT SWITCH L120-30F (AUTO RESET) \/ 543-502","offer_id":47251343704349,"sku":null,"price":98.85,"currency_code":"CAD","in_stock":true},{"title":"3\" CAMSTAT FIXED LIMIT SWITCH L120-30F (AUTO RESET) \/ 36A90","offer_id":47251343802653,"sku":null,"price":98.85,"currency_code":"CAD","in_stock":true},{"title":"3\" CAMSTAT FIXED LIMIT SWITCH L120-30F (AUTO RESET) \/ L59-3A-120-30","offer_id":47251343769885,"sku":null,"price":98.85,"currency_code":"CAD","in_stock":true},{"title":"3\" CAMSTAT FIXED LIMIT SWITCH L120-30F (AUTO RESET) \/ P-8-10852","offer_id":47251343835421,"sku":null,"price":98.85,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/7298\/9981\/files\/31c6ff1f74a44953bd070abe1ba47c99.webp?v=1773958234"},{"product_id":"543-500","title":"543-500","description":"The Camstat 3-inch adjustable limit switch is a vital safety component for HVAC systems and furnaces. Designed to function as a high limit control, this switch monitors the temperature within the heating plenum or heat exchanger to prevent the appliance from overheating. With an adjustable range between L120 and L250 degrees Fahrenheit, it provides flexible protection for a wide variety of heating applications. When the internal temperature reaches the set threshold, the switch automatically breaks the electrical circuit, shutting down the heating source to ensure safe operation and prevent equipment damage. It is a reliable replacement part for maintaining the safety standards of residential and commercial heating units.\u003cbr\u003e\nType: High Limit Control Switch\u003cbr\u003e\nSize: 3-inch probe\u003cbr\u003e\nDimensions: 3 in\u003cbr\u003e\nApplication: Commonly installed in gas, electric, and oil furnaces, as well as general HVAC heating systems, to provide high-temperature safety cut-off functionality.\u003cbr\u003e\nSpecifications: Temperature Range: Adjustable 120°F to 250°F; Switch Type: Normally Closed (opens on temperature rise); Insertion Depth: 3 inches.","brand":"BCFurnace","offers":[{"title":"3\" CAMSTAT ADJUSTABLE LIMIT SWITCH L120-L250 \/ 543-500","offer_id":47251344392477,"sku":null,"price":98.85,"currency_code":"CAD","in_stock":true},{"title":"3\" CAMSTAT ADJUSTABLE LIMIT SWITCH L120-L250 \/ FF568","offer_id":47251344523549,"sku":null,"price":98.85,"currency_code":"CAD","in_stock":true},{"title":"3\" CAMSTAT ADJUSTABLE LIMIT SWITCH L120-L250 \/ L593BA","offer_id":47251344458013,"sku":null,"price":98.85,"currency_code":"CAD","in_stock":true},{"title":"3\" CAMSTAT ADJUSTABLE LIMIT SWITCH L120-L250 \/ L59-3B-A","offer_id":47251344490781,"sku":null,"price":98.85,"currency_code":"CAD","in_stock":true},{"title":"3\" CAMSTAT ADJUSTABLE LIMIT SWITCH L120-L250 \/ L59-3BA","offer_id":47251344425245,"sku":null,"price":98.85,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/7298\/9981\/files\/0bff2f6ce3a148f6a254cc07e4c4242c.webp?v=1773967241"},{"product_id":"543-002","title":"543-002","description":"Ensure the safety and efficiency of your heating system with this premium 3-inch high limit control switch. Designed as a critical thermal safety component for furnaces and air handlers, this switch monitors the temperature within the heat exchanger. It acts as a fail-safe by automatically cutting power to the heating element or burner if the unit exceeds safe operating temperatures, preventing damage and potential fire hazards. This auto-reset thermal cutout features a 130-degree Fahrenheit trip point and a 30-degree differential, ensuring your HVAC system returns to operation only after cooling to a safe level. Ideal for furnace repair and routine maintenance, this durable sensor is essential for maintaining consistent climate control and extending the lifespan of your heating equipment.\u003cbr\u003e\nType: High Limit Control Switch\u003cbr\u003e\nSize: 3-inch insertion depth\u003cbr\u003e\nDimensions: 3 in\u003cbr\u003e\nApplication: Commonly used in residential furnaces, air handlers, and forced-air heating systems to prevent overheating and protect the heat exchanger.\u003cbr\u003e\nSpecifications: Opens at 130°F; closes with a 30°F differential; automatic reset; 3-inch probe length.","brand":"BCFurnace","offers":[{"title":"3\" HIGH LIMIT SWITCH L130-30F \/ 543-002","offer_id":47251345441053,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L130-30F \/ 10G52","offer_id":47251345473821,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L130-30F \/ 10G5201","offer_id":47251345506589,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L130-30F \/ L130-30F","offer_id":47251345539357,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/7298\/9981\/files\/2f54418fe00543898b9b3367226bd41b.webp?v=1773958255"},{"product_id":"543-001","title":"543-001","description":"Ensure the safety and efficiency of your heating system with this premium 3-inch high limit switch. Designed as a critical thermal safety component for HVAC units, furnaces, and air handlers, this L140-40F control switch monitors internal temperatures to prevent dangerous overheating. If temperatures exceed the preset safety threshold of 140°F, the switch automatically interrupts the electrical circuit to shut down the heating element or burner. Once the unit cools down by 40°F, the system safely resets. This high-quality replacement part is essential for maintaining proper airflow safety and protecting your appliance from heat damage. It is an ideal solution for professional technicians and DIY homeowners looking for reliable climate control components that ensure long-term system health.\u003cbr\u003e\nType: High Limit Control Switch\u003cbr\u003e\nSize: 3-inch sensing probe\u003cbr\u003e\nDimensions: 3 inches\u003cbr\u003e\nApplication: Used in HVAC systems, central furnaces, and air handling units as a thermal safety cutout to prevent overheating.\u003cbr\u003e\nSpecifications: Temperature Limit: Opens at 140°F; Differential: 40°F (Closes at 100°F); Reset Type: Automatic; Configuration: Normally Closed (NC).","brand":"BCFurnace","offers":[{"title":"3\" HIGH LIMIT SWITCH L140-40F \/ 543-001","offer_id":47251349537053,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L140-40F \/ 1NT23L-5128","offer_id":47251349635357,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L140-40F \/ HH12ZB140","offer_id":47251349569821,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L140-40F \/ L140-40F..","offer_id":47251349602589,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/7298\/9981\/files\/3080af97269e4512a7f27f0c6808fc97.webp?v=1773958329"},{"product_id":"543-015","title":"543-015","description":"Ensure your heating system operates safely and efficiently with this premium 3-inch high limit switch. Designed as a critical safety component for residential and commercial furnaces, this thermal limit control prevents dangerous overheating by automatically interrupting the heating cycle if temperatures exceed safe operating parameters. Featuring a 235-degree Fahrenheit cutout threshold and a 30-degree differential for reliable automatic resetting, this switch is essential for maintaining furnace longevity and protecting your home's HVAC system. It is a vital replacement part for restoring proper furnace function and ensuring consistent temperature regulation during the colder months.\u003cbr\u003e\nType: High Limit Control Switch\u003cbr\u003e\nSize: 3-inch insertion depth\u003cbr\u003e\nDimensions: 3 in\u003cbr\u003e\nApplication: Commonly used in forced-air furnaces, gas heaters, and various HVAC heating units as a primary safety cutout and temperature regulator.\u003cbr\u003e\nSpecifications: Temperature Limit: Opens at 235°F; Differential: Closes at 205°F (30°F drop); Reset Type: Automatic; Sensor Type: Bimetal Disc","brand":"BCFurnace","offers":[{"title":"3\" HIGH LIMIT SWITCH L235-30F \/ 543-015","offer_id":47251349799197,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L235-30F \/ 27K12","offer_id":47251349864733,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L235-30F \/ 27K1201","offer_id":47251349831965,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L235-30F \/ 73K17","offer_id":50579248939293,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L235-30F \/ L235-30F","offer_id":47251349897501,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/7298\/9981\/files\/efa39c732ff64de7b062b11cb9f28ae9.webp?v=1773958322"},{"product_id":"543-016","title":"543-016","description":"Ensure your heating system operates safely and efficiently with this premium high limit control switch. Designed as a critical safety mechanism for forced-air furnaces and HVAC units, this thermal sensor monitors the temperature within the heat exchanger. If internal temperatures reach a dangerous level, the switch automatically interrupts the burner circuit to prevent overheating and potential equipment damage. It features a precise 230-degree Fahrenheit cutout point and a 30-degree reset differential to ensure your system returns to operation only when it has cooled to a safe temperature. This 3-inch limit control is a vital replacement part for addressing common furnace issues like short-cycling or a blower motor that runs constantly due to a tripped safety circuit.\u003cbr\u003e\nType: High Limit Control Switch\u003cbr\u003e\nSize: 3-inch insertion\u003cbr\u003e\nDimensions: 3 inches\u003cbr\u003e\nApplication: Residential gas furnaces, electric heating systems, and forced-air HVAC units requiring thermal overload protection.\u003cbr\u003e\nSpecifications: Cut-out temperature: 230°F; Cut-in\/Reset temperature: 200°F (30°F differential); Normally closed circuit; 3-inch flange-to-tip depth.","brand":"BCFurnace","offers":[{"title":"3\" HIGH LIMIT SWITCH L230-30F \/ 543-016","offer_id":47251351109917,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L230-30F \/ C340366P08","offer_id":47251351208221,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L230-30F \/ L230-30F","offer_id":47251351240989,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L230-30F \/ SWT01652","offer_id":47251351142685,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L230-30F \/ SWT1652","offer_id":47251351175453,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/7298\/9981\/files\/98d60b66f2f8426cbef6674445b5b8fa.webp?v=1773967254"},{"product_id":"543-027","title":"543-027","description":"Ensure your heating system operates safely and efficiently with this 3-inch high limit control switch. Designed for HVAC and furnace applications, this thermal limit switch serves as a critical safety component that monitors internal temperatures within the heat exchanger. It is engineered to automatically interrupt power if the temperature exceeds the safety threshold of 220°F, preventing potential damage from overheating. Once the temperature cools by a 30°F differential, the switch automatically resets to restore normal operation. This high-quality replacement part is essential for troubleshooting furnace short-cycling or system shutdowns, providing reliable climate control and long-term protection for your heating equipment.\u003cbr\u003e\nType: High Limit Control Switch\u003cbr\u003e\nSize: 3-inch insertion depth\u003cbr\u003e\nDimensions: 3 inches\u003cbr\u003e\nApplication: Commonly used in forced-air furnaces, HVAC systems, and residential heating units to prevent overheating and ensure safe operating temperatures.\u003cbr\u003e\nSpecifications: Cut-out Temperature: 220°F; Differential\/Reset: 30°F (Resets at 190°F); Reset Type: Automatic; Switch Type: Normally Closed (NC) SPST.","brand":"BCFurnace","offers":[{"title":"3\" HIGH LIMIT SWITCH L220-30F \/ 543-027","offer_id":47251351273757,"sku":null,"price":230.21,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L220-30F \/ 025-29041-001","offer_id":47251351372061,"sku":null,"price":230.21,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L220-30F \/ 02529041001","offer_id":47251351404829,"sku":null,"price":230.21,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L220-30F \/ L220-30F..","offer_id":47251351437597,"sku":null,"price":230.21,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L220-30F \/ S1-025-29041-001","offer_id":47251351339293,"sku":null,"price":230.21,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L220-30F \/ S1-02529041001","offer_id":47251351306525,"sku":null,"price":230.21,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/7298\/9981\/files\/88491da477da4fdb83871fe15d46dd6a.webp?v=1773958377"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/7298\/9981\/collections\/773-135-removebg-preview_hI5uGx9_6c81d01e-8c89-4958-b5cf-744b659a05a7.png?v=1701983838","url":"https:\/\/bcfurnace.myshopify.com\/collections\/3-high-limit-control-switches.oembed","provider":"BCFurnace","version":"1.0","type":"link"}