{"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","url":"https:\/\/bcfurnace.myshopify.com\/products\/543-240","provider":"BCFurnace","version":"1.0","type":"link"}