{"product_id":"westinghouse-lm3400-circuit-breaker","title":"Westinghouse | LM3400 | Circuit Breaker | 3-Pole | 600V | Bolt-On","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Westinghouse LM3400—an enduring solution for 3‑pole, 600V circuit protection shaped for maintenance, retrofit, and replacement projects. Designed to slot into panels that support bolt‑on breakers, this unit keeps your 3‑phase systems safe and compliant without sacrificing downtime or reliability.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003e3‑Pole design\u003c\/strong\u003e engineered for three‑phase circuits, delivering synchronized protection across all phases.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e600V maximum system voltage\u003c\/strong\u003e suitable for a wide range of commercial and light industrial applications.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBolt‑On mounting\u003c\/strong\u003e for solid, secure installation in compatible panels, enabling quicker service and fewer mounting concerns.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number LM3400\u003c\/strong\u003e serves as the clearest compatibility reference—always confirm fit and ratings with your exact panel.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMaintenance, retrofit, and replacement ready\u003c\/strong\u003e ideal for upgrading aging protection, extending panel life, and minimizing downtime.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this breaker matters\u003c\/h3\u003e\n\u003cp\u003eIn electrical systems where reliable three‑phase protection at up to 600V is essential, the LM3400 from Westinghouse provides a proven solution that technicians trust. The bolt‑on design simplifies field servicing, while the 3‑pole configuration ensures comprehensive circuit interruption protection across all conductors. This is especially beneficial in retrofit scenarios where matching an existing panel’s form factor and mounting style is critical to a smooth upgrade.\u003c\/p\u003e \u003ch3\u003eUse cases and ideal applications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003ePanel upgrades in factories, warehouses, and data centers requiring bolt‑on, three‑pole 600V protection.\u003c\/li\u003e \u003cli\u003eReplacement for failed or obsolete LM3400 units in existing 3‑phase systems, minimizing compatibility concerns with the best reference part number.\u003c\/li\u003e \u003cli\u003eMaintenance cycles for industrial equipment or commercial electrical rooms where downtime must be minimized and reliability is paramount.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eCompatibility and installation notes\u003c\/h3\u003e\n\u003cp\u003eBefore ordering, verify that your panel accepts bolt‑on, 3‑pole breakers of 600V class. The LM3400 is the best reference for compatibility, and confirmation of fit and ratings against your panel’s labeling is recommended. Follow your panel manufacturer’s installation instructions and safety practices when mounting and wiring, and ensure the device’s voltage and protection requirements align with your system demands.\u003c\/p\u003e \u003ch3\u003eWhy choose Westinghouse\u003c\/h3\u003e\n\u003cp\u003eWestinghouse brings a long‑standing legacy of dependable electrical protection. The LM3400 line is built to meet industry standards while delivering straightforward replacement in maintenance and retrofit projects, helping you maintain consistent protection across your electrical infrastructure.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Westinghouse","offers":[{"title":"Default Title","offer_id":46424393875618,"sku":"LM3400","price":310.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/westinghouse-lm3400-circuit-breaker-3-pole-600v-bolt-201.webp?v=1789350979","url":"https:\/\/www.ampstate.com\/products\/westinghouse-lm3400-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}