{"product_id":"westinghouse-spb100-250-lsig-air-circuit-breaker","title":"Westinghouse SPB100-250-LSIG Air Circuit Breaker","description":"\u003cdiv\u003e\u003cp\u003eThe Westinghouse SPB100-250-LSIG Air Circuit Breaker provides LSIG protection for high-capacity industrial power distribution in a 250 A frame with a 3-pole configuration and a 200 A trip unit. As part of Westinghouse's Pow-R-Breaker line, it delivers long-time, short-time, instantaneous, and ground-fault protection to guard equipment from overloads and short circuits. Designed for installation in switchgear or panel-mounted assemblies, it operates at 50\/60 Hz and is built for industrial and commercial environments. Typical applications include switchgear, motor control centers, and industrial distribution systems in manufacturing plants, where dependable high-current protection supports continuous operation and equipment safety. Common replacements listed for this breaker include Eaton Magnum DS, Siemens WL, and Square D Masterpact, reflecting its role in established industrial protection ecosystems.\u003c\/p\u003e\u003c\/div\u003e","brand":"Westinghouse","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":46242194751722,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0716\/8039\/3450\/files\/GTG-STOCK-003.png?v=1788727429","url":"https:\/\/gtghardware.com\/products\/westinghouse-spb100-250-lsig-air-circuit-breaker","provider":"GTG Hardware","version":"1.0","type":"link"}