ABB / General Electric THQB2160GFT2 GFCI Miniature Circuit Breaker

This bolt-on breaker is designed exclusively for GE A-Series panelboards and GE AQ lighting panels. It is not compatible with standard residential PowerMark load centers, which require plug-on THQL breakers.

This is a Class A GFCI breaker, meaning it is calibrated to trip when it detects a ground fault current imbalance of 5mA. This provides personnel protection against electrical shock.

As a THQB frame breaker, it features a bolt-on connection type. It must be bolted directly to the busbars of an A-Series or AQ lighting panel, ensuring a secure, vibration-resistant connection compared to plug-on alternatives.

Yes, the GFT2 designation indicates this breaker features an automatic self-test function. It continuously monitors its internal circuitry to ensure the ground fault protection remains fully operational.

The THQB2160GFT2 features a pigtail neutral wire that must be connected directly to the panel neutral bus bar to ensure the ground fault detection circuitry functions correctly.

GE Industrial Solutions was acquired by ABB. You may receive this exact THQB2160GFT2 breaker branded as either General Electric or ABB, but the form, fit, and function remain identical.

No. Because it is a 120/240VAC GFCI breaker, the pigtail neutral must be connected to the panel neutral bus to power the internal ground fault detection circuitry, even if the load itself is strictly 240V.

The THQB2160GFT2 is a Class A GFCI providing personnel protection with a 5mA trip threshold. The THQB2160GFEP2 is an Equipment Protection (GFEP) breaker with a 30mA trip threshold, designed to protect machinery rather than people.