Westinghouse | HMA3700 | Circuit Breaker | 700A | 3-Pole | 600V

Experience dependable, high-capacity protection with the Westinghouse HMA3700 circuit breaker. This 3-pole, 700A device is engineered for demanding three-phase systems and suits maintenance, retrofit, and replacement projects where exact specifications and reliable performance matter.

• Three-pole design for three-phase protection—keeps aligned protection across all phases in commercial and industrial panels.
• 700A current rating—provides robust protection for high-load circuits without compromising safety or performance.
• 600V system compatibility—suitable for standard industrial electrical installations and equipment rated for 600V.
• Part number accuracy—HMA3700 is the definitive reference for compatibility with Westinghouse panels and related systems.
• Durable construction for challenging environments—built to withstand the rigors of maintenance and retrofit work in active facilities.

Why this matters—Choosing the correct circuit breaker is essential for reliable panel protection, equipment longevity, and crew safety. The HMA3700’s precise ratings ensure you won’t over-protect or under-protect critical loads, giving you predictable behavior during fault conditions and easier compliance with electrical standards in your facility.

Ideal use cases

Perfect for facility managers upgrading aging panels, data centers implementing three-phase protection, manufacturing lines requiring reliable high-current interruption, and electrical contractors performing retrofit or replacement work where exact part compatibility is essential.

Compatibility and installation notes

Always verify fit and ratings before ordering. The part number HMA3700 is your best reference for compatibility with Westinghouse systems. When planning installation, confirm that the panel labeling supports a 3-pole, 700A, 600V configuration and ensure mounting and bus connections match the intended setup.

Upgrade your electrical protection with a trusted Westinghouse circuit breaker engineered for performance, reliability, and straightforward compatibility in demanding three-phase environments.