ABB / General Electric THQMV150E Molded Case Circuit Breaker

This unit is designed exclusively as a main breaker conversion kit for 150A to 225A GE PowerMark Gold and ABB ReliaHome convertible load centers.

No, the THQMV series is engineered strictly as a main breaker conversion unit. It will not fit standard branch breaker spaces within Q-Line distribution panels.

Yes, the THQMV150E serves as the direct, modernized replacement for legacy GE THQMV150 and THQMV150D main circuit breakers.

Yes, this main breaker kit can be utilized for either top or bottom feed installations within compatible GE and ABB convertible load centers.

The terminals accept 1 AWG through 300 kcmil copper conductors, and 2/0 AWG through 300 kcmil aluminum conductors. Electricians must also account for wire bending space requirements during installation.

Yes, the THQMV150E is a complete conversion kit that includes the circuit breaker and the required mounting base to secure it directly to the load center bus.

The 22,000 Amps Interrupting Capacity ensures the breaker can safely clear higher available fault currents. This is often required for heavy commercial applications or residential service entrances located close to a utility distribution transformer.

The thermal element responds to prolonged overloads by heating up and tripping the breaker to prevent wire damage. The magnetic element provides an instantaneous trip response to severe short circuits, immediately cutting power to the busbar.