Square D QO120PGFI - 20A, 1-Pole, Circuit Breaker

Square D QO120PGFI is a 20A, 1-Pole Ground-Fault Interrupter (GFI) circuit breaker designed to deliver precise protection where it matters most. Built for demanding environments, this breaker sits in the Square D QO family and is engineered to integrate seamlessly with panelboards, switchboards, and control panels.

With its 20A current rating and 1-Pole configuration, the QO120PGFI provides reliable branch-circuit protection while safeguarding personnel from ground faults. This combination of overcurrent interruption and ground-fault protection helps minimize electrical shock risk and equipment damage in everyday operations and emergency scenarios.

Key benefits and why it matters

• Integrated ground-fault protection helps detect and interrupt leakage current to earth, reducing the chance of shock and electrical fires on sensitive circuits.
• Compact 1-Pole design suits single-circuit branches in crowded panels, enabling efficient use of space in distribution panels and motor control centers.
• Industrial, commercial, and OEM friendly—specifically chosen for installations in panelboards, switchboards, and control panels where dependable protection and safe operation are crucial.
• Reliable Square D quality backed by the robustness of the QO series, designed for consistent performance in demanding electrical environments.

Ideal use cases

• Covering individual branch circuits in distribution panels and motor control centers where ground-fault protection is required.
• Upgrade or retrofit projects in commercial electrical rooms where space and reliability are key concerns.
• OEM equipment builds that need a compact, dependable GFI breaker within a standard QO footprint.

Practical considerations

• Ensure compatibility with Square D QO panelboards and related enclosures to maintain proper fit and electrical coordination.
• Plan for convenient maintenance and testing workflows in environments that rely on quick fault isolation and predictable protection performance.
• Verify correct slot placement and wiring arrangement to maximize protection coverage on the intended circuit.

Choose the QO120PGFI when you need solid ground-fault protection without sacrificing the simplicity and compatibility of the trusted Square D QO series. It’s a purpose-built solution for protecting people and equipment in industrial, commercial, and OEM settings, delivering calm reliability when it matters most.