{"product_id":"021-877","title":"021-877","description":"This heavy-duty Air Pressure Proving Switch is a critical safety and operational component designed for commercial and industrial HVAC systems. As an SPDT (Single Pole Double Throw) switch, it accurately monitors air pressure levels to ensure proper airflow within air handling units, furnaces, and ventilation systems. Rated for high-capacity 22 Amp and 480V applications, this switch acts as a reliable air flow sensor that prevents system operation if hazardous conditions or blockages are detected. It is an essential replacement part for maintaining the efficiency and safety of large-scale climate control equipment, providing precision switching and long-lasting durability in demanding environments.\u003cbr\u003e\nType: Air Pressure Switch \/ Air Proving Switch\u003cbr\u003e\nSize: Medium\u003cbr\u003e\nApplication: Commonly used in commercial HVAC systems, industrial air handlers, ventilation units, and furnace air-proving circuits to monitor blower operation and duct pressure.\u003cbr\u003e\nSpecifications: Switch Configuration: SPDT (Single Pole Double Throw); Current Rating: 22 Amps; Maximum Voltage: 480V; Actuation Type: Pressure-sensitive; Application: Air Proving.","brand":"BCFurnace","offers":[{"title":"SWITCH, SPDT, 22 AMPS, 480V, PRESSURE \/ 021-877","offer_id":50216342061341,"sku":null,"price":102.45,"currency_code":"CAD","in_stock":true},{"title":"SWITCH, SPDT, 22 AMPS, 480V, PRESSURE \/ SWT01394","offer_id":50216342094109,"sku":null,"price":102.45,"currency_code":"CAD","in_stock":true}],"url":"https:\/\/bcfurnace.myshopify.com\/products\/021-877","provider":"BCFurnace","version":"1.0","type":"link"}