{"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","url":"https:\/\/bcfurnace.myshopify.com\/products\/543-145","provider":"BCFurnace","version":"1.0","type":"link"}