ABB / General Electric THHQL2180 Miniature Circuit Breaker

This breaker is designed for use in GE PowerMark Gold Load Centers, ABB ReliaHome Load Centers, and GE AQ Lighting Panels. Always verify compatibility with your specific panel's labeling before installation.

Yes, the THHQL2180 shares the same 1-inch per pole physical footprint as the standard THQL2180 but offers a higher interrupting rating of 22kAIC (compared to 10kAIC). It can be used as a direct upgrade in compatible panels where higher fault current protection is required.

The "HH" indicates a high interrupting capacity. While standard GE THQL breakers are rated for 10kAIC, THHQL breakers provide a 22kAIC rating for locations with higher available fault currents.

For the box lugs on this 80A breaker, the recommended tightening torque is 45 in-lb for 6 to 4 AWG wire, and 50 in-lb for 3 to 1/0 AWG wire. Always ensure connections are properly torqued to prevent overheating.

The THHQL2180 features a plug-in mounting style. If your application requires a bolt-on connection to the bus bar, you will need a THHQB series breaker instead.

No. The THHQL2180 is a full-size, 1-inch per pole breaker. It must be installed in standard Q-Line slots that accept THQL or THHQL frame types, not in spaces restricted to half-inch THQP breakers.