General Electric THLC434250 250A 3-Pole 480 V Circuit Breaker

The General Electric THLC434250 is a rugged 250 A, 3-Pole circuit breaker designed for 480 V three-phase power. As part of GE's THLC family, this unit delivers reliable interruption capability to protect feeders, motors, and downstream equipment in demanding industrial and commercial environments.

Key specifications

• Current rating: 250 A
• Poles: 3-pole
• Voltage rating: 480 V
• Part number: THLC434250

Why this 3-pole, 480 V breaker matters

In a 480 V three-phase system, a single protective device that covers all three phases ensures coordinated protection across the entire circuit. The THLC434250 consolidates protection for three live lines into one robust unit, reducing wiring complexity and simplifying maintenance in busy electrical rooms.

Ideal use cases

• Industrial facilities running 480 V three-phase equipment, such as conveyors, pumps, and large motors
• Feeders powering subpanels or motor control centers that require strong fault isolation
• Repairs or upgrades to existing GE-based electrical distributions where a THLC-series breaker is appropriate

Practical considerations

Before installing, verify your system voltage is 480 V and that a three-phase configuration is present. Follow GE installation guidelines for mounting and connection, and ensure the current rating aligns with your load calculations to provide optimal protection without nuisance trips.