ABB / General Electric THQC1120GFT – 20A GFCI Molded Case Circuit Breaker Best Price

A drop-in replacement for the discontinued THQC1120GF, this updated single-pole breaker adds automatic self-testing to its 5mA ground fault protection. It attaches to standard DIN rail systems inside OEM enclosures and commercial control panels. The integrated diagnostic feature routinely verifies the internal circuitry, ensuring continuous compliance with modern NEC safety codes for damp environments without requiring manual intervention.