Square D QO120GFI GFCI Miniature Circuit Breaker

No. The QO120GFI is designed exclusively for Square D QO load centers and NQ panelboards. Homeline panels utilize a different bus bar design and require HOM series breakers.

No. This breaker features a factory-installed pigtail wire that connects directly to the panel neutral bar, making it compatible with standard, non-plug-on neutral QO panels.

The load hot wire and load neutral wire from your branch circuit both connect directly to the breaker terminals. The breaker's coiled white pigtail wire is then connected to the panel neutral bus bar.

Both catalog numbers refer to the exact same 20A GFCI circuit breaker. The "C" suffix on the QO120GFIC simply indicates that the item comes in retail clamshell packaging.

Yes. It provides Class A ground-fault protection, meaning it is calibrated to trip when a ground fault of 6 milliamps or higher is detected, which is necessary for personnel protection in wet or damp locations.

No. The QO120GFI is strictly a ground-fault circuit interrupter (GFCI). If NEC code requires both AFCI and GFCI protection for a specific circuit, a dual-function breaker like the QO120DFC is required instead.

When the breaker trips due to an overload, short circuit, or ground fault, the handle moves to a center position and a bright red indicator appears in the breaker face, allowing for rapid identification of the tripped circuit.

Yes. This plug-on breaker is compatible with Square D NQ panelboards. It snaps directly onto the panel bus, but the pigtail neutral must be routed and secured to the panel neutral bar.