Westinghouse FD3-100L Circuit Breaker, 100A, 3-Pole, 600V

Introducing the Westinghouse FD3-100L Circuit Breaker — a purpose-built, industrial-grade protective device engineered to safeguard three-phase power systems. Rated at 100 A with a 3-pole configuration and a 600 V maximum, the FD3-100L is designed for reliability in maintenance, service, and replacement projects in commercial and industrial settings.

Key specifications at a glance

• Amperage: 100 A
• Poles: 3
• Voltage rating: 600 V

Unique value you’ll feel on the job

• Three-pole design for three-phase protection keeps all phases synchronized, delivering consistent interruption during faults.
• Industrial-grade reliability built to stand up to the rigors of daily panel protection tasks in manufacturing, warehousing, and process environments.
• Direct compatibility check via part number verify fit using the FD3-100L part number and your application requirements, reducing the risk of mismatches.
• Clear application guidance notes emphasize compatibility checks, so you know you’re ordering the right device for your panel and duty.

Compatibility and verification made simple — Use the part number FD3-100L to confirm the breaker fits your panelboard or equipment. If you’re unsure about fit or how it integrates with your system, you can reach out for assistance with part-number matching and compatibility verification.

Practical use cases — This breaker is well-suited for upgrades, panel replacements, and new installations in industrial environments where motors, conveyors, pumps, and other three-phase loads require dependable protection up to 600 V.

Installation tips and care — Ensure the panel rating supports a 100 A, 3-pole device and follow standard electrical safety practices during installation. Keep the part number handy for quick reordering or cross-checks during maintenance.