Westinghouse | 371D426G32 | Circuit Breaker | 400A | 3-Pole | 600V | Bolt-On

Meet the Westinghouse 371D426G32 circuit breaker—a bolt-on, three-pole protection device designed for demanding electrical environments. Built for reliability in industrial and commercial panels, this unit delivers robust overcurrent protection for systems rated up to 600V with a strong 400A rating, ensuring your distribution network stays safeguarded against overloads and short circuits.

• Amperage: 400 A
• Poles: 3-Pole
• Voltage rating: 600 V
• Mounting: Bolt-On
• Model / Part number: 371D426G32
• Brand: Westinghouse

Why this Westinghouse breaker is a smart choice

Unlike lightweight, plug-in solutions, the bolt-on design of the 371D426G32 provides a secure, high-torque connection ideal for installations where vibration, heat, or frequent maintenance demands reliability. The 3-pole configuration ensures synchronized disconnection across all three phases, a critical requirement for balanced power distribution and motor protection in commercial equipment, manufacturing lines, and large HVAC systems.

Key benefits and practical use cases

• Maintenance and retrofit ready: Perfect for updating aging panels or replacing worn-out breakers when the exact spec (400 A, 3-Pole, 600 V) is required.
• Replacement with confidence: The part number 371D426G32 serves as the best compatibility reference—verify fit and ratings before ordering to avoid mismatches.
• Industrial-grade protection: Suitable for high-current distribution networks where three-phase protection and robust mounting are essential.
• Panel compatibility (bolt-on): Designed for panels configured to accept bolt-on breakers, offering a secure, durable connection under demanding operating conditions.

How to ensure the right fit

Before purchasing, confirm that your equipment and panelboard support bolt-on breakers of this exact specification. The part number is your most reliable reference for compatibility, so cross-check it against your panel’s documentation and any OEM guidelines. If your project involves a retrofit or replacement, this Westinghouse unit aligns with typical 400 A, 3-pole, 600 V configurations found in industrial control setups.

Who should consider this breaker

• Electrical technicians performing maintenance on commercial or industrial panels.
• Facilities managers planning panel upgrades or retrofits to accommodate higher protection levels.
• OEMs or service teams replacing worn or obsolete components within Westinghouse-compatible systems.

With the Westinghouse 371D426G32, you get a purpose-built, high-current, three-phase breaker that emphasizes secure mounting, precise trip capability, and dependable performance in challenging environments. Use the part number 371D426G32 as your anchor for compatibility, and ensure fit and ratings align with your panel requirements before ordering.