{"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","url":"https:\/\/bcfurnace.myshopify.com\/products\/543-027","provider":"BCFurnace","version":"1.0","type":"link"}