Square D | KCF34110 | Circuit Breaker | 110A | 3-Pole | 480V

Square D KCF34110 circuit breaker is designed for reliability and straightforward integration into 480V three-phase electrical systems. Rated at 110A with a 3-pole configuration, it provides synchronized disconnection of all three phases to safeguard equipment and maintain power reliability in industrial environments.

Whether you're performing a retrofit, maintenance replacement, or upgrading an existing panel, this KCF34110 unit offers a precise fit for applications requiring matching amperage, pole count, and voltage. Always confirm fit and ratings before ordering—the part number KCF34110 is the most reliable reference for compatibility with your Square D panel or enclosure.

Key specifications

• Amperage: 110 A
• Poles: 3-Pole
• Voltage rating: 480 V
• Part number: KCF34110

Why this model is a smart choice

• Three-pole protection for balanced interruption across all phases in 480V systems, reducing the risk of phase-to-ground faults and equipment damage.
• Built to fit replacement and retrofit scenarios where panel compatibility is defined by the KCF family frame and 480V operation.
• Part of Square D’s trusted protection lineup, offering dependable performance and predictable trip behavior for critical loads.

Practical use cases

• Upgrading or replacing worn breakers in industrial control panels and switchboards operating at 480V.
• Retrofit projects in manufacturing lines, conveyors, pumps, and fans that run on 3-phase power.
• Maintenance replacements to restore original protection specifications without compromising system safety.

Installation and safety tips

• Always power down and follow lockout/tagout procedures before service.
• Verify that your panel’s labeling, bus rating, and enclosure are compatible with a 110A, 3-pole, 480V device.
• Ensure correct terminal torque and secure connections per your panel manual to maintain reliable protection and minimize hot spots.