Westinghouse | HKA2125 | Circuit Breaker | 125A | 2-Pole | 600V | Bolt-On

Meet the Westinghouse HKA2125 Circuit Breaker — a rugged 125A, 2-pole, 600V bolt-on unit designed for demanding electrical panels. Built for maintenance, retrofit, and replacement projects, this breaker delivers precise protection where exact specifications matter.

Designed to be the reliable heart of commercial and light industrial panelboards, the HKA2125 provides secure, field-serviceable mounting with a bolt-on connection that stays tight under vibration and load fluctuations. The two-pole configuration ensures simultaneous disconnection of both live conductors, delivering enhanced safety for circuits that require common-trip protection, while its 600V rating supports higher-voltage applications without compromising performance.

Key specifications

• Amperage: 125 A
• Poles: 2-Pole
• Voltage rating: 600 V
• Mounting: Bolt-On

What makes this breaker unique

Core to its appeal is the bolt-on mounting, which provides a robust, heat-dissipating connection less prone to loosening in environments with vibration or repeatedOperation. The 2-pole design not only protects conductors in tandem but also simplifies panel layouts by aligning with common-trip protection strategies used in higher-current circuits. When space is at a premium, the compact bolt-on form factor keeps installation straightforward without sacrificing performance at the 125A rating.

Ideal use cases

Perfect for replacing worn or obsolete breakers in existing panels that specify bolt-on, 125A, 2-pole, 600V devices. It’s a practical choice for panel retrofits, service upgrades, and maintenance cycles in commercial settings, manufacturing floors, and electrical enclosures where reliability and compatibility with the original specifications are essential.

Installation and compatibility tips

• Before ordering, confirm fit and ratings using the part number HKA2125 as the primary reference for compatibility.
• Verify your panel accepts bolt-on breakers and that the 125 A, 2-pole, 600V ratings match the protected load and system requirements.
• Follow standard lockout/tagout procedures and ensure mounting torque aligns with manufacturer guidelines for secure, long-lasting connections.
• Keep record of the part number and panel model to simplify future replacements and maintenance checks.

Choosing the Westinghouse HKA2125 means selecting a purpose-built, dependable solution for protecting your circuits with precise specs and a mounting method designed for lasting performance. If this part number matches your panel’s requirements, it’s a straightforward path to a safer, more reliable electrical system.