{"product_id":"westinghouse-lb3400f-circuit-breaker","title":"Westinghouse | LB3400F | Circuit Breaker | 400A | 3-Pole | 600V | Bolt-On","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Westinghouse LB3400F Circuit Breaker — a purpose-built protection device designed for demanding electrical environments. This 400A, 3-pole, 600V bolt-on breaker delivers reliable overcurrent protection for commercial and industrial panels, ensuring your system stays safeguarded under heavy load.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 400A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 600V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Bolt-On\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eThis unit is ideal for maintenance, retrofit, and replacement projects where you need to match exact specifications. The LB3400F is designed to slot into compatible panels, and the part number LB3400F is the most reliable reference for compatibility. Before ordering, confirm fit and ratings to ensure seamless operation in your system.\u003c\/p\u003e \u003cul\u003e \u003cli\u003eSecure bolt-on mounting provides a robust mechanical and electrical connection in rugged installations\u003c\/li\u003e \u003cli\u003ePrecisely rated for 400A, 3-pole, 600V service, aligning with common industrial and commercial panel requirements\u003c\/li\u003e \u003cli\u003eBuilt for reliability in follow-up maintenance and panel retrofits where exact specifications matter\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eUse cases and practical applications:\u003c\/p\u003e \u003cul\u003e \u003cli\u003eRetrofits in aging electrical systems that require a 400A, 3-pole, 600V protection device\u003c\/li\u003e \u003cli\u003eReplacement for panels needing a bolt-on circuit breaker with matching performance\u003c\/li\u003e \u003cli\u003eNew installations in systems designed around a 3-pole, 400A protection strategy\u003c\/li\u003e\n\u003c\/ul\u003e \u003cul\u003e \u003cli\u003eAlways verify panel compatibility using the exact part number LB3400F to ensure proper fit\u003c\/li\u003e \u003cli\u003eFollow standard electrical safety practices and refer to panel manufacturer guidelines when installing a bolt-on breaker\u003c\/li\u003e \u003cli\u003eMaintain a spare LB3400F on hand for proactive maintenance in high-demand facilities\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eChoosing the Westinghouse LB3400F means opting for a trusted, spec-matched solution that keeps high-demand electrical systems protected with clear, dependable performance. If the project requires a 400A, 3-pole, 600V bolt-on circuit breaker, this model is engineered to meet those exact specifications and support reliable, long-term operation.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Westinghouse","offers":[{"title":"Default Title","offer_id":46425643253922,"sku":"LB3400F","price":310.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/westinghouse-lb3400f-circuit-breaker-400a-3-pole-600v-bolt-962.webp?v=1789436028","url":"https:\/\/www.ampstate.com\/products\/westinghouse-lb3400f-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}