{"product_id":"westinghouse-kt3400t-thermal-magnetic-trip-unit","title":"Westinghouse KT3400T Thermal Magnetic Trip Unit","description":"\u003cdiv\u003e\u003cp\u003eThe Westinghouse KT3400T Thermal Magnetic Trip Unit is a 400A replaceable trip accessory for KT-series circuit breakers. This dual-function device provides thermal (overload) protection and magnetic (short-circuit) protection, enabling the breaker to trip quickly on high fault current while allowing normal operation during typical overloads. As a component of the Cutler-Hammer\/Westinghouse protection lineup, the KT3400T is designed to fit compatible KT-type breakers and to restore specified trip characteristics when replacement is required. Its 400A rating identifies the current at which the unit operates, making it suitable for medium- to large-load circuits within electrical distribution panels that employ KT-series protection. By offering a modular trip unit, it supports maintenance and lifecycle management by replacing the trip element without replacing the entire breaker assembly.\u003c\/p\u003e\u003c\/div\u003e","brand":"Cutler","offers":[{"title":"New Surplus No Box","offer_id":51680090161454,"sku":null,"price":300.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_a3e7620b-9e66-4e56-8ae1-1511a6569a75.jpg?v=1769619030","url":"https:\/\/plgautomation.com\/products\/westinghouse-kt3400t-thermal-magnetic-trip-unit","provider":"PLG Automation ","version":"1.0","type":"link"}