Square D QO 50A 3-Pole Ground Fault Circuit Breaker
The Square D QO350GFI is a 3-pole miniature circuit breaker with integrated ground fault interrupter (GFI) protection. Rated for 50A at 208Y/120VAC with a 10kA interrupt capacity, it is designed for plug-in installation in QO load centers and panelboards. It provides 6mA ground fault protection via a pigtail connection.
Key Features
- 50A, 3-pole design for 3-phase circuits
- 208Y/120VAC rated for commercial panelboard applications
- 10kA short circuit interrupt capacity
- 6mA ground fault protection for personnel safety
- Plug-in mount for fast, secure installation in QO load centers
- TAA compliant
Specifications
- Amperage: 50A
- Poles: 3
- Voltage Rating: 208Y/120VAC
- Interrupt Capacity: 10kA
- Ground Fault Sensitivity: 6mA
- Connection: Pigtail
- Mount: Plug-In
- Standards: CSA, UL Listed
- Model: QO350GFI
- UPC: 78590121899
Applications
Suitable for commercial and institutional electrical panels requiring ground fault protection on 3-phase branch circuits, including kitchens, bathrooms, outdoor receptacles, and other areas requiring GFI protection per NEC requirements.



