{"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","url":"https:\/\/bcfurnace.myshopify.com\/products\/543-175","provider":"BCFurnace","version":"1.0","type":"link"}