Westinghouse | FB3100S | Circuit Breaker | 3-Pole

The Westinghouse FB3100S 3-Pole Circuit Breaker is built for dependable, multi-line protection in electrical panels that require three independent poles. Designed for maintenance, retrofit, and replacement projects, this breaker helps keep critical circuits safe while you upgrade or service your panel.

Why the FB3100S stands out

When your electrical system needs reliable, uninterrupted overcurrent protection across three conductors, the FB3100S delivers with precise trip operation and consistent performance. This 3-Pole model is specifically chosen for projects where matching specifications is essential, ensuring you don’t run into compatibility issues during replacement or panel upgrades.

Key details

• Pole configuration: 3-Pole
• Part number: FB3100S
• Core use cases: maintenance, retrofit, and replacement where matching specs are required
• Compatibility note: Confirm fit and ratings before ordering; the part number is the best reference for compatibility

Who is this for?

• Electrical professionals performing panel retrofits or replacements
• Facility managers upgrading electrical infrastructure
• Homeowners or property owners with panels that require precise three-pole protection and a trusted brand

Use cases and scenarios

• Replacing a failing 3-Pole breaker in a Westinghouse-compatible panel to restore multi-circuit protection
• Upgrading a legacy panel during a retrofit to meet current safety standards while maintaining electrical reliability
• Installing in service areas with three separate circuits that demand synchronized disconnection for safety

Practical tips for installation and selection

• Always verify fit and ratings against your panel’s labeling before purchasing. The FB3100S is the best reference for compatibility.
• Power down the main disconnect, discharge capacitors if required, and inspect panel bus stabs for wear before replacing a breaker.
• Handle the breaker with dry hands and use appropriate PPE. Ensure the breaker is firmly seated in the panel to maintain secure electrical contact.
• Keep a spare FB3100S on hand for future maintenance or emergency replacements to minimize downtime.

Whether you’re tackling a targeted retrofit, replacing an aging component, or outfitting a panel for a safer, more reliable electrical system, the Westinghouse FB3100S 3-Pole Circuit Breaker delivers trusted protection with a clear path to compatibility. Align the part number with your panel’s requirements, perform a quick fit check, and proceed with confidence.