Westinghouse | RK3125 | Circuit Breaker | 125A | 3-Pole | 600V

Meet the Westinghouse RK3125 Circuit Breaker—a purpose-built protection device designed for demanding 3-phase electrical systems. Rated at 125A, this 3-pole breaker delivers reliable fault isolation for circuits up to 600V, making it a solid choice for maintenance, retrofit, and replacement projects where exact specs matter.

Key details at a glance

• Amperage: 125A
• Poles: 3-Pole
• Voltage rating: 600V
• Reference compatibility: Part number RK3125 ensures you’re matching the exact component you need

Why choose the Westinghouse RK3125

• Direct-fit option for 3-phase service panels that require a 125A, 3-pole breaker, simplifying replacements and upgrades without panel modifications.
• Supports reliable electrical protection in commercial and industrial environments where equipment safety and uptime are critical.
• Clear compatibility reference: using the RK3125 part number reduces guesswork and helps you verify fit before purchase.

Ideal use cases

• Replacing a failed 3-pole breaker in service or distribution panels that operate up to 600V.
• Retrofits or upgrades where a 125A capacity and 3-phase protection are required.
• Maintenance cycles in warehouses, manufacturing floors, data centers, or large commercial spaces with 3-stage circuits.

Installation and safety notes

• Before ordering, confirm fit and ratings against your panel’s labeling and the RK3125 reference to ensure compatibility.
• Have a qualified electrician perform installation and adhere to local electrical codes and safety practices.

With the Westinghouse RK3125, you get a trusted 125A, 3-pole, 600V circuit breaker that helps keep critical systems protected while simplifying replacements and retrofits. Rely on a familiar form factor and a known performance baseline to minimize downtime and support steady, safe operation of your electrical distribution.