ABB / General Electric THQMV200WL Molded Case Circuit Breaker

The THQMV200WL is designed exclusively for use as a main circuit breaker in ABB and General Electric PowerMark Gold load centers rated between 150A and 225A. It is not interchangeable with other panel brands or older GE load centers that do not support THQMV frame types.

Yes, the THQMV200WL acts as a direct replacement for discontinued THQMV200 and THQMV200D models. Additionally, ABB and GE have introduced the THQMV200E as the newer equivalent. All of these part numbers share the same physical footprint and plug-in top-feed main breaker design.

The "WL" designation indicates that the breaker comes "With Lugs" factory installed on the terminals. These box lugs are ready to accept large service entrance conductors, specifically 1 AWG to 300 kcmil copper or 2/0 AWG to 300 kcmil aluminum wire.

Yes, this model is engineered and commonly installed as a top-feed main circuit breaker kit. The terminal orientation allows service entry cables dropping from the top of the panel to land securely and directly into the breaker lugs.

An interrupting rating of 22kAIC at 240V is frequently required by local utilities for buildings located close to a utility transformer, where the available fault current exceeds standard 10kAIC levels. This main breaker ensures the panel can safely clear massive short circuits without catastrophic failure.

The THQMV200WL uses a dual element trip unit. The thermal element provides Long-Time protection, gradually heating up and tripping if the panel draws slightly over 200 amps for an extended period. The magnetic element provides Instantaneous protection, tripping the breaker immediately if a severe short circuit occurs.