Westinghouse | RJ2125 | Circuit Breaker | 125A | 2-Pole | 600V | Bolt-On

The Westinghouse RJ2125 Circuit Breaker is a robust bolt-on protection device designed to guard your electrical system against overloads and short circuits. With a 125A rating and a two-pole configuration, it delivers dependable, 600V capacity for protecting feeders and branch circuits in both residential and commercial panels.

Engineered for maintenance, retrofit, and replacement tasks where exact specs matter, the RJ2125 model aligns with panels that require bolt-on mounting. Its straightforward, field-serviceable design makes swapping in a worn breaker efficient, minimizing downtime and keeping your electrical system protected.

• Amperage: 125 A
• Poles: 2-Pole
• Voltage: 600 V
• Mounting: Bolt-On
• Part Number: RJ2125
• Brand: Westinghouse

Notes: Confirm fit and ratings before ordering. The part number RJ2125 is the best reference for compatibility.

Why this bolt-on breaker stands out

• Solid mounting and reliable connections: Bolt-On mounting provides a secure, vibration-resistant attachment to compatible panels, helping prevent loose connections that can cause nuisance trips.
• Targeted protection for larger circuits: A 125A rating is ideal for feeder lines and heavy-load branch circuits in panels that require a two-pole, high-capacity device.
• Clear replacement path: With the RJ2125 part number, you can confidently source a compatible bolt-on breaker for Westinghouse systems, reducing guesswork during maintenance or panel upgrades.
• Versatile application: Suitable for retrofit projects, maintenance replacements, and new installations that specify bolt-on, 2-pole, 600V protection.

Use cases and practical tips: Map your panel’s requirements to the RJ2125 specifications—125A, 2-Pole, 600V, Bolt-On—and reference the exact part number when ordering to ensure a proper fit. Before installation, de-energize the system, follow local electrical codes, and apply only the torque recommended by your panel’s manufacturer to secure mounting hardware. This approach helps ensure dependable protection and long-term performance for your electrical distribution setup.