{"product_id":"547-121","title":"547-121","description":"This 7-inch high limit switch is a critical safety component designed for HVAC systems, furnaces, and various heating appliances. Functioning as a thermal cutout, this switch protects your equipment by automatically interrupting the electrical circuit if internal temperatures exceed a safe threshold. With a fixed temperature rating of 170°F, it prevents overheating and potential damage to sensitive components. The switch features an automatic reset mechanism that re-engages once the temperature drops by 20 degrees, ensuring your appliance returns to safe operation without manual intervention. Replacing a faulty high limit control is essential for maintaining the efficiency and safety of your heating system.\u003cbr\u003e\nType: High Limit Control Switch\u003cbr\u003e\nSize: 7-inch\u003cbr\u003e\nDimensions: 7 in\u003cbr\u003e\nApplication: Commonly used in residential and commercial HVAC systems, furnaces, and other high-output heating appliances as a primary safety sensor to prevent thermal runaway.\u003cbr\u003e\nSpecifications: Temperature Open: 170°F; Temperature Close: 150°F (20°F differential); Switch Type: Normally Closed (NC); Reset Type: Automatic","brand":"BCFurnace","offers":[{"title":"7\" HIGH LIMIT SWITCH L170-20F \/ 547-121","offer_id":47251388530973,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"7\" HIGH LIMIT SWITCH L170-20F \/ 47-21711-10","offer_id":47251388596509,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true},{"title":"7\" HIGH LIMIT SWITCH L170-20F \/ L170-20F.","offer_id":47251388563741,"sku":null,"price":68.83,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/7298\/9981\/files\/c1ef0f82bb0841ef9802b2cc242c384f.webp?v=1773958457","url":"https:\/\/bcfurnace.myshopify.com\/products\/547-121","provider":"BCFurnace","version":"1.0","type":"link"}