{"product_id":"westinghouse-lgmps400g-circuit-breaker","title":"Westinghouse | LGMPS400G | Circuit Breaker | 400A | 3-Pole | 600V | 35kA | Bolt-On","description":"\u003cdiv\u003eWestinghouse LGMPS400G is a robust bolt-on circuit breaker purpose-built for demanding 3-phase power systems. With a 400A rating, 3 poles, and a 600V operating voltage, this unit delivers reliable protection where safety and uptime matter most. The 35kA interrupting capacity means it’s prepared to handle significant short-circuit events, helping to safeguard both equipment and personnel in industrial and commercial environments. Key specifications at a glance\n- Amperage: 400A\n- Poles: 3-Pole\n- Voltage: 600V\n- Interrupting rating: 35kA\n- Mounting: Bolt-On\n- Reference: Part number LGMPS400G Why this Westinghouse breaker stands out\n- Retrofit-ready design: The bolt-on configuration is specifically aimed at efficient maintenance, retrofit, and replacement projects, reducing downtime and making upgrades smoother in panels that require matching specs.\n- Clear compatibility cue: The part number LGMPS400G is the best reference to verify fit and ratings, helping you avoid mismatches in legacy or upgraded electrical systems.\n- Three-phase protection you can trust: For commercial buildings, manufacturing floors, and data-center environments, this 3-pole unit provides balanced protection across all phases, maintaining system stability and safety.\n- Strong short-circuit performance: A 35kA interrupting capacity ensures rapid, reliable disconnection in fault conditions, helping to minimize damage and risk. Practical use cases\n- Panel upgrades and replacements in industrial facilities where existing equipment requires exact 400A, 3-pole, 600V specifications.\n- Retrofit projects in commercial buildings that demand a dependable, high-capacity bolt-on breaker without extensive wiring changes.\n- Maintenance cycles in machines and process lines that rely on consistent, proven protection for three-phase power distribution. Who this is ideal for\n- Electrical contractors performing retrofits or replacements in legacy switchgear.\n- Facility engineers upgrading protection for 3-phase systems in manufacturing, warehouses, and large commercial spaces.\n- Maintenance teams seeking a reliable, standard-reference breaker that aligns with Westinghouse specs for compatibility and long-term reliability. Installation and readiness tips\n- Before ordering, confirm fit and ratings using the part number LGMPS400G as your primary compatibility check.\n- Ensure your panel and wiring configurations are rated for 600V operation and that the system requires 3-phase, 400A protection.\n- Follow your panel manufacturer’s installation guidelines and torque specifications for bolt-on mounting to ensure secure, compliant operation.\n- Plan for proper protective coordination with upstream and downstream protection devices to maximize system reliability. Westinghouse LGMPS400G delivers a precise combination of form, function, and compatibility—designed to simplify replacement, support reliable protection, and keep three-phase systems running smoothly.\u003c\/div\u003e","brand":"Westinghouse","offers":[{"title":"Default Title","offer_id":46425660620962,"sku":"LGMPS400G","price":4092.0,"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-lgmps400g-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}