Cutler-Hammer GD3030C Circuit Breaker, 30A, 3-Pole, 480V

Cutler-Hammer GD3030C Circuit Breaker is a rugged, 30-amp, 3-pole protective device designed for industrial electrical service, maintenance, and replacement in 3-phase systems. Built to pair with the Cutler-Hammer Case series, this breaker delivers dependable protection for 480V feeders and motors.

With a 30 A rating and 3-pole configuration, the GD3030C is ideal for safeguarding 3-phase equipment in manufacturing lines, process controls, and heavy equipment installations. It fits into standard 3-phase panelboards and switchgear setups that operate at 480 volts, helping prevent costly outages from short circuits and overloads.

Key specifications

• Manufacturer: Cutler-Hammer
• Series: Case
• Part number: GD3030C
• Product type: Circuit Breaker
• Amperage: 30 A
• Poles: 3
• Voltage: 480V

Why this matters for your operation

Choosing the GD3030C means you get a genuine, factory-grade component designed to withstand industrial conditions. The 3-pole design ensures all three phases are protected in a single device, simplifying panel layout and maintenance. Its 480V rating aligns with common industrial power distribution, making it a reliable choice for motor circuits, conveyors, pumps, and other 3-phase loads.

Use cases and ideal applications

• Replacement in existing 480V, 3-phase panels to restore reliable protection for motors and feeders.
• New installations where a 3-pole 480V protective device is required in a Case-series panelboard.
• Maintenance projects requiring compatible, exact-part replacements to minimize downtime.

Compatibility and installation notes

To ensure a secure fit, verify the part number (GD3030C) against your application requirements and the Case-series panel or switchgear you’re using. If you’re unsure about compatibility, reach out for confirmation before purchase — we can help confirm fit and address any panel-specific considerations.

Note: This item is associated with the Case series. Use the stated part number to confirm compatibility with your equipment and installation scenario. Need help matching a part number or confirming compatibility? Message us and we'll help.