Square D QO250GFI is a 50-amp, 2-pole molded‑case circuit breaker in the QO family that provides ground-fault protection for 120/240 V circuits. As a GFCI breaker, it delivers Class A protection with a 6 mA trip threshold and is designed for plug‑on installation in Square D QO load centers. This single‑phase device protects branch circuits in homes or light commercial settings where moisture or water exposure is a concern, such as kitchens, bathrooms, outdoor outlets, and laundry areas, while maintaining standard overcurrent protection for normal faults.
