Square D QO120GFI 20A 1P 120V Circuit Breaker, QO, GFCI, Plug-On | AmpState

Protect indoor and light-duty circuits with precision using the Square D QO120GFI 20A 1P 120V GFCI plug-on circuit breaker. Designed for panelboards, load centers, and distributed electrical systems, this QO-series device delivers ground-fault protection where it matters most—reducing the risk of shock on 120V circuits and providing a reliable, integrated safety solution for modern panels.

• GFCI protection at 120V: 20-amp, 1-pole configuration protects receptacle circuits prone to moisture, humidity, or ground faults—great for workshops, garages, kitchens, and other high-risk areas.
• Plug-On installation: Quick, tool-free mounting into compatible Square D QO panelboards; designed for a direct part-number match to streamline replacements and reduces installation time.
• Direct part-number match: Part Number QO120GFI is a precise, day-one fit for panel builders, maintenance teams, and spare inventories where exact compatibility matters.
• Versatile application: Ideal for circuits requiring immediate protection right at the breaker level, supporting reliable electrical distribution in residential and light commercial setups.
• Part of the trusted Square D QO family: Leverages the consistency and compatibility of a widely adopted line for easy stocking and dependable performance in panel systems.

Who benefits most: electricians, facilities maintenance crews, and panel builders who need a dependable, match-for-match GFCI breaker that can be swapped in without rewiring. If your project calls for 20A, 120V, 1-pole GFCI protection in a QO panel, the QO120GFI is a straightforward, reliable choice that maintains your panel’s wiring integrity while elevating safety across your distribution circuits.

Compatibility and installation overview

This plug-on GFCI breaker is intended for Square D QO panelboards and load centers. Ensure the panel supports QO-type breakers and that the circuit requires GFCI protection. The plug-on design simplifies integration into existing electrical distribution setups, making it a practical option for replacements, upgrades, or new installations where a direct part-number match is essential.

Specifications at a glance

• Manufacturer: Square D
• Part Number: QO120GFI
• Product Type: Circuit Breaker
• Amperage: 20 A
• Poles: 1 Pole
• Voltage: 120V
• GFCI: Yes (Ground-Fault Circuit Interrupter)
• Mounting: Plug-On for QO panelboards