Westinghouse | FB3100N | Circuit Breaker | 3-Pole | Bolt-On

Westinghouse FB3100N is a 3-pole bolt-on circuit breaker built for dependable protection in maintenance, retrofit, and replacement projects. Designed to match specific panel requirements, this unit helps you safeguard 3-phase circuits with a straightforward, field-friendly mounting style.

Why the FB3100N 3-Pole Bolt-On Breaker stands out

• Three-pole protection delivers simultaneous disconnection of all three lines in a 3-phase system, enhancing safety and reducing the risk of lingering faults after a trip.
• Bolt-on mounting provides a secure, vibration-resistant connection in compatible panels, making it a reliable choice for retrofit and service operations where a solid mechanical bond matters.
• Part number reference FB3100N is the primary compatibility reference—use it to verify that your panel accepts this bolt-on style and form factor before ordering.
• Durable, field-friendly design engineered for real-world use in commercial and industrial environments where consistent protection and easy serviceability are essential.

Important: Confirm fit and ratings before ordering. The FB3100N part number is the best reference for compatibility with your specific panel configuration.

Practical use cases

• Retrofit projects in older panels that require bolt-on, three-pole protection for 3-phase motors and equipment.
• Replacement of failing or aged breakers in maintenance schedules, minimizing downtime with a like-for-like form factor.
• New installations in systems designed for bolt-on protection where secure mounting and robust trip performance are prioritized.

Ideal for

• Facilities managers and electrical contractors maintaining commercial or light industrial panels.
• Electrical teams performing retrofits or upgrades that require a precise 3-pole bolt-on device.
• Panel builders and service technicians seeking a dependable replacement option with clear compatibility references.

Installation and care tips

To maximize reliability, follow standard safety practices and panel manufacturer guidelines. Before installation, power down the equipment and verify that the panel supports bolt-on breakers of the FB3100N’s form factor. Align the breaker with the bus bars, secure the mounting bolts according to the panel’s specifications, and re-check connections for tightness. After installation, test the circuit through a controlled procedure to ensure proper tripping behavior and alignment with the panel’s protection strategy. Keep the device clean and free from corrosion, and inspect mounting hardware during routine maintenance to preserve a solid, long-lasting connection.