Square D | FCL340501212 | Circuit Breaker | 50A | 3-Pole | 480V

Meet the Square D FCL340501212 circuit breaker—a purpose-built, 50 A, 3-pole unit designed for 480 V three-phase systems. It’s crafted for maintenance, retrofit, and replacement tasks where exact specifications matter, delivering dependable overcurrent protection in demanding industrial environments.

• Brand and part: Square D, FCL340501212
• Amperage: 50 A
• Poles: 3-Pole
• Voltage: 480 V

Why a 3-pole, 480-volt breaker matters

In three-phase systems, a 3-pole breaker disconnects all three hot legs simultaneously, which protects connected equipment, reduces arc risks, and helps maintain coordinated protection across the panel. The 50 A rating is suited for circuits that draw up to that limit, supporting reliable operation of motors, drives, and heavy equipment common in industrial settings.

Ideal use cases

• Maintenance or replacement in existing 480 V panels that require a precise 50 A, 3-Pole solution
• Retrofits where exact Square D specifications must be preserved to keep panel performance consistent
• Repairs or upgrades in facilities employing 480 V three-phase distribution needing dependable, standardized protection

Compatibility and installation guidance

Before ordering, verify fit and ratings by matching the exact part number FCL340501212 with your panel’s requirements. The part number is the most reliable reference for compatibility. Ensure your enclosure and bus arrangement support a 3-pole, 480 V device and that your load profiles align with a 50 A breaker.

Practical tips for a smooth replacement

• Power down the circuit and follow lockout/tagout procedures before removing or installing the breaker.
• Inspect the panel’s documentation to confirm the breaker’s trip characteristics align with your system needs.
• Handle the unit carefully to avoid damage to terminals and bus connections; use appropriate torque and installation guidelines from the datasheet.

Designed to integrate seamlessly into compatible Square D installations, this FCL340501212 breaker delivers reliable, field-tested protection for 480 V three-phase distributions. If you require exact specifications to match your equipment and ensure safe, compliant operation, this model is the precise reference you need.