GE THED124040WL - 40 A, 480 V, 2-Pole Circuit Breaker | AmpState

The GE THED124040WL is a 40A, 480V, 2-pole molded case circuit breaker designed to deliver reliable branch circuit protection right where you need it—within panelboards and loadcenters. Available through AmpState, this unit is built to keep electrical systems safe, efficient, and up to code in demanding residential, commercial, and light industrial environments.

• Compact molded case design maximizes panel space, allowing cleaner wiring layouts and easier future expansion without compromising protection performance.
• Thermal-magnetic trip unit delivers stable, repeatable protection by combining thermal sensing for overcurrent with magnetic trip for high fault currents. This reduces nuisance trips while maintaining fast, decisive action when faults occur.
• OEM-compatible fit designed to pair with GE OEM loadcenters and panelboards, ensuring reliable mechanical alignment and consistent electrical characteristics across assemblies.
• Versatile for multiple sectors suited for residential, commercial, and light industrial applications, from home office panels to small warehouses and retail spaces.

Technical snapshot

• Amperage rating: 40A
• Voltage rating: 480V
• Number of poles: 2
• Type: Thermal-magnetic molded case circuit breaker
• Part number: THED124040WL
• Application: Branch circuit overcurrent and short-circuit protection

Why this breaker stands out

Unlike generic protections, the THED124040WL is purpose-built for reliability in GE panelboard ecosystems. The thermal-magnetic trip unit provides precise coordination with upstream devices, helping you avoid unnecessary outages while still delivering fast fault interruption. The compact form factor and durable molded case construction are designed for long-term service in challenging environments, reducing maintenance and replacement frequency.

Ideal use cases

• New installations for light commercial spaces such as small offices, shops, and service rooms that rely on 480V distribution.
• Upgrades or replacements in existing GE panelboards and loadcenters where OEM compatibility matters for system integrity.
• Subpanels in multi-tenant buildings where space is at a premium and dependable protection is critical.

Installation and practical notes

• Install according to local electrical codes and manufacturer instructions. Ensure the main disconnect is de-energized before replacement or installation.
• Verify panelboard compatibility with the THED124040WL to maintain consistent trip characteristics and labeling.
• Use with appropriate conductors and terminate within torque specifications recommended for molded case breakers to ensure a secure, durable connection.

For projects requiring dependable 40-amp branch circuit protection at 480V in panelboards and loadcenters, the GE THED124040WL offers a purpose-built, space-efficient, and reliably coordinated solution. It’s the right choice when you value precise protection, OEM compatibility, and long-term performance in residential, commercial, and light industrial settings.