Industrial GC3020 20A 3-Pole 480 V Circuit Breaker

The Industrial GC3020 20A 3-Pole 480 V Circuit Breaker is built to safeguard your three-phase power distribution with precision and reliability. At a 20-amp current rating, this breaker delivers targeted protection for each branch in a 480 V system, while its 3-pole design ensures all phases are interrupted together for safe, comprehensive shutdowns during faults.

Key specifications

• Part Number: GC3020
• Current rating: 20 A
• Poles: 3
• Voltage rating: 480 V

What it protects and how it helps

This circuit breaker serves as a critical line of defense in industrial electrical systems, stopping fault currents before they can damage wiring, motors, drives, or other equipment. When a fault or overload occurs, the GC3020 trips and can be reset after the condition is resolved, restoring power once safety is reestablished.

Ideal applications

• Three-phase motor control circuits in manufacturing lines
• Power distribution for 480 V equipment in warehouses and facilities
• Motor control centers and distribution panels requiring reliable phase-wide protection
• HVAC and industrial automation systems that run on 480 V three-phase power

Why this 3-Pole design matters

A 3-pole breaker like the GC3020 disconnects all three supply conductors simultaneously. This reduces the risk of backfeed, uneven phasing, or partial energization during maintenance, helping technicians work safely and equipment reset cleanly after a fault.

Practical tips for use

• Confirm compatibility with your panel’s mounting and 480 V three-phase distribution scheme before installation.
• Use as part of a coordinated protection strategy to safeguard motors, drives, and connected loads in industrial environments.
• Label circuits clearly and keep a record of trip events to assist with diagnostics and preventive maintenance.