Square D FC34020G 20A 3-Pole 480 V Circuit Breaker

Square D FC34020G 20A 3-Pole 480V Circuit Breaker is a rugged, reliable solution for protecting three-phase power distribution in demanding industrial environments. With a 20-amp current rating and a 480-volt capacity, this breaker is built to safeguard motor-driven equipment, HVAC systems, and heavy machinery across commercial and manufacturing facilities.

What it is and how it helps

This three-pole circuit breaker provides fast, automatic interruption of fault currents, shielding wiring and equipment from damage due to overloads or short circuits. The 3-pole design ensures balanced protection across all hot legs in a 3‑phase system, which is essential for smooth motor operation and to prevent phase imbalances that can degrade performance.

Ideal use cases

• Protect 3-phase motors, conveyors, pumps, and compressors in manufacturing lines.
• Distribute reliable protection in industrial control panels and electrical enclosures handling 480V systems.
• Support commercial HVAC equipment and large-scale electrical installations that run on three-phase power.

Why this model stands out

• tailored for circuits that require exact current limiting in 3-phase setups.
• ensures synchronized disconnection across all phases, reducing the risk of lingering fault conditions.
• makes it compatible with modern industrial equipment and higher-voltage distribution networks.
• uses the familiar Square D FC34020G part number, simplifying stocking and panel replacement tasks.

Key specifications

• Part Number: FC34020G
• Current rating: 20 A
• Poles: 3
• Voltage rating: 480 V

Installation and practical tips

Ensure this breaker is compatible with your panel or switchgear family before installation. Have a qualified electrician perform wiring in accordance with local electrical codes and the equipment manufacturer’s guidelines. When replacing an existing unit, verify that the FC34020G’s specifications match the circuit’s requirements (voltage, current, and phase configuration) to maintain proper protection and coordination with other protective devices.

For anyone running 3-phase, 480V systems that demand dependable circuit protection with straightforward replacement parts, the Square D FC34020G 20A 3-Pole 480V Circuit Breaker delivers consistent performance, clear trip indication, and compatible form factor for streamlined maintenance and setup.