Westinghouse | FB3100PL | Circuit Breaker | 100A | 3-Pole | 600V

Meet the Westinghouse FB3100PL circuit breaker — a robust 3-pole, 100-amp protection device engineered for electrical systems up to 600V. Crafted for maintenance, retrofit, and replacement projects, this breaker delivers reliable overload protection while keeping your panel aligned with precise specifications.

Key specifications at a glance

• Amperage: 100 A
• Poles: 3-Pole
• Voltage rating: 600V
• Part number: FB3100PL
• Ideal use: maintenance, retrofit, and replacement where exact specs are required

Compatibility and fit

The FB3100PL designation is your best reference for compatibility. Before ordering, confirm fit and ratings against your panel labeling and service guide to ensure a seamless replacement. While this unit is designed for standard 3-pole 600V configurations, panel varieties exist, and precise matching helps prevent installation delays and protection gaps.

Who this is for

• Electrical contractors performing panel retrofits or service upgrades
• Maintenance teams replacing aging or failed breakers in 600V systems
• Property managers and technicians ensuring consistent, reliable overcurrent protection

Use cases and scenarios

• Replacing a worn or failed 3-pole breaker in a 600V distribution panel with a unit that exactly matches the original specifications
• Retrofit projects where a 100 A, 3-pole, 600 V protection device is required to support updated equipment or circuits
• Maintenance cycles that call for a direct-spec replacement to minimize downtime and ensure continued electrical safety

Installation and handling tips

Always power down the main supply and follow panel manufacturer guidelines when replacing a breaker. Verify the correct mounting style and bus connection for your specific panel, then torque fasteners to the panel’s specifications. If there’s any doubt about fit or ratings, pause the installation and consult a qualified electrician to ensure safe, compliant operation.

Why choose Westinghouse FB3100PL

This 100A, 3-Pole, 600V circuit breaker is purpose-built for precise compatibility in retrofit and replacement projects. By sticking with the FB3100PL part number, you maximize the odds that the new unit will integrate smoothly with your existing panel architecture, preserving electrical safety and system reliability. Use it in situations where exact specifications matter and downtime needs to be minimized by a straightforward, matching replacement.