{"product_id":"westinghouse-lb3400-circuit-breaker","title":"Westinghouse | LB3400 | Circuit Breaker | 3-Pole | Bolt-On","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Westinghouse LB3400 Circuit Breaker—a dependable 3-pole bolt-on solution designed for professional electrical panels that require solid three-phase protection. Identified by its part number LB3400, this breaker is crafted for maintenance, retrofit, and replacement projects where precise compatibility matters.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003e3-Pole bolt-on design\u003c\/strong\u003e provides secure, multi-phase protection for three-phase circuits, helping to safeguard motors, compressors, and other industrial equipment.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBolt-On mounting\u003c\/strong\u003e delivers a sturdy, vibration-resistant connection that remains reliable through demanding operating conditions.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMaintenance, retrofit, and replacement ready\u003c\/strong\u003e—an ideal choice when updating existing panels or upgrading to a proven three-phase protection solution.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBest compatibility reference\u003c\/strong\u003e—use the part number LB3400 as your primary reference to ensure a proper fit for compatible Westinghouse panels and bolt-on installations. Always confirm fit and ratings before ordering.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eWho this is for\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eFacilities managers and electricians performing panel upgrades in commercial or light industrial environments.\u003c\/li\u003e \u003cli\u003eTechnicians replacing aging breakers in systems that require a 3-pole, bolt-on configuration.\u003c\/li\u003e \u003cli\u003eProjects where exact spec matching (LB3400) is essential to maintain electrical code compliance and system protection.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eWhy it matters\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eReliable three-phase protection translates to fewer unexpected trips, smoother motor startup, and improved overall panel performance.\u003c\/li\u003e \u003cli\u003eUsing the LB3400 supports consistent electrical protection strategies across compatible Westinghouse panels, reducing compatibility guesswork during maintenance or upgrades.\u003c\/li\u003e \u003cli\u003eClear compatibility guidance—relying on the LB3400 part number helps you verification steps quickly, minimizing downtime and mis-orders in the field.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhen planning installation, verify that your panel accepts bolt-on breakers of the LB3400 family and that the ratings align with your load requirements. This approach ensures a seamless retrofit or replacement, delivering dependable protection for your three-phase systems without the guesswork.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Westinghouse","offers":[{"title":"Default Title","offer_id":46424417697954,"sku":"LB3400","price":310.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_a085eff1-75dd-47ee-b131-4c8df8f0489b.png?v=1765492976","url":"https:\/\/www.ampstate.com\/products\/westinghouse-lb3400-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}