General Electrics THKMA31200WL - 1200 A, 3-Pole Circuit Breaker | AmpState

The General Electrics THKMA31200WL is a high-capacity 1200A, 3-pole molded case circuit breaker designed to deliver reliable branch circuit protection in panelboards and load centers. Built for demanding environments, this unit helps keep electrical systems safe from overcurrent and short-circuit faults while optimizing space in your electrical panels.

Key benefits that matter in real-world panels

• Compact molded case design maximizes panel space, making it easier to fit large-capacity protection without crowding the enclosure.
• Thermal-magnetic trip unit provides stable, repeatable protection by combining long-term overload sensing with fast magnetic trip during short circuits, helping to prevent damage to downstream equipment.
• Three-pole configuration ideal for three-phase systems commonly found in commercial and light industrial applications.
• OEM compatibility engineered for seamless use with matching General Electrics OEM load centers and panelboards, ensuring straightforward replacement and reliable coordination with existing protection schemes.
• Versatile application suitable for residential, commercial, and light industrial environments where robust, dependable protection is essential.

Technical snapshot

• Manufacturer: General Electrics
• Part Number: THKMA31200WL
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 1200A
• Number of Poles: 3
• Application: Branch circuit overcurrent and short-circuit protection

Why this breaker is a smart fit for your panel

When you’re upgrading or populating a panel, the THKMA31200WL delivers a clear advantage: it pairs a higher current rating with a compact form factor, enabling you to protect large feeders without sacrificing available space. The thermal-magnetic trip mechanism ensures dependable response across varying loads and fault conditions, so you’re less likely to experience nuisance trips or delayed fault clearance. And because it’s designed to be compatible with GE OEM load centers and panelboards, you gain straightforward installation, consistent performance, and easier maintenance checks over the life of the system.

Practical use cases and considerations

• Install in three-phase distribution panels serving commercial equipment, manufacturing lines, or office campuses where 1200A protection is required.
• Use as a main or feeder breaker in compatible GE panelboards to safeguard large-draw circuits and feeders from overloads and faults.
• Pair with other GE protection devices in a coordinated protection scheme to enhance system reliability and fault clearing times.

For installers and facility managers, the THKMA31200WL offers a combination of high ampacity, compact design, and OEM compatibility that simplifies stocking, replacement, and field service. Rely on this molded case breaker to deliver consistent, long-lasting protection for your critical electrical infrastructure.