GE THED124040 - 40 A, 480 V, 2-Pole Circuit Breaker | AmpState

GE THED124040 is a 40A, 480V, 2-pole molded case circuit breaker built to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and loadcenters. With a compact design and a thermal-magnetic trip unit, it combines space efficiency with precise, repeatable protection for demanding electrical layouts.

• Compact molded case design maximizes panel space, making it ideal for retrofit jobs and crowded electrical closets where every inch counts.
• Thermal-magnetic trip unit provides stable protection by sensing both thermal overloads and magnetic short circuits, delivering fast, reliable responses across temperatures and load conditions.
• 2-pole configuration protects two conductors simultaneously, simplifying wiring and ensuring coordinated shutoff for shared loads.
• 40A, 480V rating is suited for commercial and light industrial circuits, including feeders and controlled equipment, where higher voltage distribution is required.
• OEM compatibility designed to pair with matching GE OEM loadcenters and panelboards for guaranteed fit, bus alignment, and electrical continuity.
• Versatile application suitable for residential, commercial, and light industrial environments that demand reliable circuit protection and quick nuisance tripping avoidance.

Technical specifications

• Manufacturer: GE
• Part Number: THED124040
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 40A
• Voltage Rating: 480V
• Number of Poles: 2
• Application: Branch circuit overcurrent and short-circuit protection

Why choose the GE THED124040? Its combination of compact form factor and a dependable thermal-magnetic trip mechanism addresses real-world needs—from space-constrained panel installations to demanding commercial systems. By matching GE’s loadcenter and panelboard ecosystems, it ensures a precise fit, reliable operation, and straightforward integration into existing electrical architectures.

Ideal use cases include protecting feeders in commercial interiors, subpanels in light industrial facilities, and residential installations where a robust, high-voltage, 2-pole breaker is required. For technicians and installers, this part offers predictable performance, easy sourcing within GE’s OEM ecosystem, and clear protection boundaries for safe, compliant electrical distribution.

Practical tips for installation and use:

• Verify panel compatibility with GE OEM loadcenters and panelboards to ensure seamless bus connection and mounting.
• Plan circuits around the 480V rating to match your service voltage and prevent nuisance tripping on non-compatible loads.
• Keep a few spare THED124040 units on hand for quick replacements in time-sensitive maintenance scenarios.