Square D QOB120AFI - 20A, 1-Pole, Circuit Breaker

The Square D QOB120AFI is a compact, dependable 20A, 1-Pole circuit breaker designed to deliver precise overcurrent protection where it matters most. Engineered for reliability in demanding environments, this unit slips into panelboards, switchboards, and control panels with ease, making it a smart choice for modern electrical distribution.

• Current rating: 20A
• Pole count: 1-Pole
• Breaker type: Circuit Breaker
• Applications: Fits in panelboards, switchboards, and control panels for flexible deployment
• Series: Square D QOB120AFI family, built for industrial, commercial, and OEM use

Designed for industrial, commercial, and OEM applications where dependable protection and safe operation are critical, the QOB120AFI protects critical circuits in distribution panels and motor control centers. By delivering reliable tripping behavior when overloads or short circuits occur, it helps safeguard equipment and maintain system uptime in demanding environments.

Why choose this 1-Pole design? A single-branch breaker streamlines installation in tight panel spaces and dedicated circuits, making it ideal for control panels and compact distribution solutions. Its focused protection suits scenarios where a single leg needs safeguarding without adding unnecessary complexity.

Use cases and scenarios

• Protecting individual distribution branches within industrial panelboards
• Guarding motor control center circuits that require precise overcurrent protection
• Replacing aging breakers in commercial switchboards to restore reliable circuit protection

In summary, the Square D QOB120AFI 20A, 1-Pole circuit breaker provides targeted, dependable protection for single-leg circuits across panelboards, switchboards, and control panels. Its suitability for industrial, commercial, and OEM environments makes it a practical, long-lasting choice for safeguarding critical electrical infrastructure.