Westinghouse | LGMPS400G | Circuit Breaker | 400A | 3-Pole | 600V | 35kA | Bolt-On

Westinghouse 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 - Amperage: 400A - Poles: 3-Pole - Voltage: 600V - Interrupting rating: 35kA - Mounting: Bolt-On - Reference: Part number LGMPS400G Why this Westinghouse breaker stands out - 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. - 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. - 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. - Strong short-circuit performance: A 35kA interrupting capacity ensures rapid, reliable disconnection in fault conditions, helping to minimize damage and risk. Practical use cases - Panel upgrades and replacements in industrial facilities where existing equipment requires exact 400A, 3-pole, 600V specifications. - Retrofit projects in commercial buildings that demand a dependable, high-capacity bolt-on breaker without extensive wiring changes. - Maintenance cycles in machines and process lines that rely on consistent, proven protection for three-phase power distribution. Who this is ideal for - Electrical contractors performing retrofits or replacements in legacy switchgear. - Facility engineers upgrading protection for 3-phase systems in manufacturing, warehouses, and large commercial spaces. - Maintenance teams seeking a reliable, standard-reference breaker that aligns with Westinghouse specs for compatibility and long-term reliability. Installation and readiness tips - Before ordering, confirm fit and ratings using the part number LGMPS400G as your primary compatibility check. - Ensure your panel and wiring configurations are rated for 600V operation and that the system requires 3-phase, 400A protection. - Follow your panel manufacturer’s installation guidelines and torque specifications for bolt-on mounting to ensure secure, compliant operation. - 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.