Square D | FCJ34100 | Circuit Breaker | 3-Pole | 480V

The Square D FCJ34100 circuit breaker is a robust 3-pole protection solution designed for 480V three-phase electrical systems. Built for maintenance, retrofit, and replacement projects, this unit helps keep critical industrial power distributions running smoothly without unnecessary downtime.

• Poles: 3-Pole configuration for reliable three-phase protection.
• Voltage rating: 480V
• Part reference: FCJ34100
• Ideal applications: maintenance, retrofit, and replacement in industrial panels and switchgear that require a 3-pole, 480V breaker.
• Compatibility note: Confirm fit and ratings before ordering. The FCJ34100 part number is the best reference for compatibility with Square D systems.

Key advantages for your operation

• Direct-fit replacement for systems specified to use FCJ34100, helping you preserve panel layout and terminal wiring.
• Consistent performance in demanding environments typical of industrial facilities, manufacturing lines, and large temperature-controlled installations.
• Streamlined procurement with a clearly identified part number, reducing guesswork during outages or planned upgrades.

Use cases and scenarios

• Retrofits of legacy panels that operate on 3-phase 480V power, where precise compatibility is required.
• Maintenance cycles for motor-driven equipment, conveyors, and HVAC systems in industrial settings.
• Replacement in switchgear and panel boards that specify a three-pole 480V protection device.

Practical guidance

• Always verify the panel’s documentation to confirm that FCJ34100 is the correct replacement part for your setup.
• Keep a spare FCJ34100 on hand for planned maintenance or critical outages to minimize downtime.