Westinghouse | RJ2125L | Circuit Breaker | 125A | 2-Pole | 600V | Bolt-On

Meet the Westinghouse RJ2125L Circuit Breaker—a precise bolt-on solution built for dependable overcurrent protection in modern electrical panels. With a 125A rating and a 2-pole design, this breaker safely disconnects both live legs, delivering reliable protection up to 600V for your circuits and equipment.

Key specifications at a glance

• Model: RJ2125L
• Ampacity: 125A
• Poles: 2-Pole
• Voltage rating: 600V
• Mounting: Bolt-On
• Brand: Westinghouse
• Applications: maintenance, retrofit, and replacement where specs align

Why this matters

In any panel upgrade or service upgrade project, you need a breaker that seats securely and performs consistently. The RJ2125L’s bolt-on design ensures a solid, vibration-resistant connection, while the 2-pole configuration provides complete disconnection of both hot legs—enhancing safety during trips and maintenance. With a 125A rating and a 600V capacity, it’s built to handle higher-load circuits with confidence.

Ideal for

• Electricians performing maintenance, retrofit, or replacement in compatible Westinghouse panels
• Homeowners upgrading circuits that require a 125A, 2-pole breaker
• Replacements where the RJ2125L part number is the best compatibility reference

Compatibility & installation notes

• Before ordering, confirm fit and ratings align with your panel’s specifications—the RJ2125L is the best compatibility reference.
• Designed for bolt-on mounting in compatible panels, ensuring a secure, long-lasting connection.
• Verify the panel is suitable for a 125A, 2-pole breaker rated up to 600V to ensure safe and reliable operation.

Practical tips and insights

Keep a small checklist handy during installation: verify the panel labeling for allowable amperage and voltage, ensure clean, dry contact surfaces, and secure the breaker firmly without over-tightening. If you’re replacing an older unit, double-check that the mechanical form factor and mounting holes align with the panel’s bus assembly to avoid fit issues.

With the Westinghouse RJ2125L, you gain a purpose-built, bolt-on circuit breaker that combines robust protection with straightforward retrofitting. It’s an ideal choice for projects where precise compatibility and dependable performance matter most.