ABB / General Electric THQL2150GFT GFCI Miniature Circuit Breaker

This breaker is designed for use in GE PowerMark Gold load centers, GE A-Series panelboards, and ABB ReliaHome load centers. It utilizes a standard 1-inch per pole plug-on mounting design.

The THQL2150GFT is the direct replacement for the legacy THQL2150GF. The "T" suffix indicates that the current model includes an automatic self-test feature to periodically verify the integrity of the ground-fault circuitry, complying with updated NEC requirements.

This breaker provides Class A ground-fault protection, meaning it is calibrated to trip when it detects a current leakage of 5mA. This level of protection is required for personnel safety in wet or damp locations.

Yes. The coiled white pigtail wire must be connected to the panel neutral bus bar to power the internal GFCI circuitry. The breaker cannot monitor for ground faults or perform self-tests without this neutral connection, even if the 240V load itself is strictly two-wire plus ground.

Yes, this 50A 2-pole GFCI breaker is frequently installed to provide personnel protection for hot tubs, spas, and swimming pool equipment. Verify that your specific equipment requires a 50A circuit and that your panel accepts Q-Line breakers.

The box lugs accept 8 AWG to 3 AWG copper or aluminum conductors. Always torque the terminal screws to the manufacturer specifications printed directly on the breaker body.