Westinghouse | RKL3150 | Circuit Breaker | 150A | 3-Pole | 600V

When your electrical panel needs dependable, compliant protection for high-demand circuits, the Westinghouse RKL3150 circuit breaker delivers. This 150A, 3-pole unit is built for 600V systems, making it well-suited for three-phase distributions in commercial and industrial settings. Use it for maintenance, retrofit, or replacement projects where exact specifications matter, and compatibility is non-negotiable.

Key specifications

• Amperage: 150 A
• Poles: 3-Pole
• Voltage rating: 600 V
• Part number: RKL3150

What makes the RKL3150 a smart choice

• Weightier protection for three-phase loads: A 3-pole design ensures simultaneous interruption across all phases, reducing the risk to connected equipment.
• Precise compatibility: The part number RKL3150 is the best reference for ensuring fit within panels that require Westinghouse-style breakers with a 600V rating.
• Reliable maintenance and replacement workflow: This unit is specifically identified for maintenance, retrofit, and replacement where matching specs are essential.

Ideal use cases

The Westinghouse RKL3150 fits panels and systems that demand high-current three-phase protection, such as manufacturing lines, HVAC distribution, and large commercial electrical feeders. It’s a practical choice when upgrading or restoring protection in legacy panels that previously used RKL-series breakers, or when you're refreshing an aging electrical feeder that requires a 150A rating and a 3-pole, 600V specification.

How to verify compatibility before you buy

Always confirm fit and ratings before placing an order. The RKL3150 model number is the most reliable reference to ensure you’re selecting a true replacement or retrofit part that matches your panel’s design and electrical characteristics.

Practical tips for installation and longevity

• Inspect the panel labeling to confirm it accepts Westinghouse RKL-series breakers and the 600V, 150A, 3-pole configuration.
• Handle the unit with the panel power off and follow safe lockout/tagout procedures during installation.
• Store spare breakers in their original packaging to preserve internal mechanisms and trip assemblies.
• Consider stocking the RKL3150 for planned maintenance windows where a precise match minimizes downtime.