Schneider Electric QOB120GFI Ground Fault Circuit Breaker

Schneider Electric’s Square D QOB120GFI is a 1-pole, 20-amp ground-fault circuit interrupter breaker built for QOB-series load centers. It protects a 120-volt circuit with a 10 kA interrupt rating at 120V, delivering fast disconnection on ground faults, and it mounts in bolt-on fashion within a single panel space. The unit accepts 14–8 AWG copper or aluminum conductors, offering wiring flexibility for typical branch circuits, and employs 6 mA Class A ground-fault sensing to trip when a ground fault is detected. As part of the QOB family from Square D by Schneider Electric, this 1P, 1-phase device is designed to provide code-compliant GFCI protection on 120V circuits in compatible panels. It is commonly used in installations where code requires GFCI protection on 120V circuits within residential or light commercial panels that accept QOB-series breakers. The QOB120GFI combines a compact footprint with reliable thermal/magnetic protection and a 10 kA interrupt rating, ensuring prompt response to faults while maintaining panel organization.