Square D QO120AFI - 20 A, 120 V, 1-Pole Plug-In Circuit Breaker | AmpState

Meet the Square D QO120AFI — a dependable 20 A, 120 V, 1-pole plug-in circuit breaker built to protect your circuits with precision and speed. Designed for fast installation and easy replacement, this molded-case breaker keeps your panelboards and loadcenters safeguarded against overcurrent and short circuits.

• Fast plug-in connection: Quick installation and straightforward replacement minimize downtime during panel servicing.
• Thermal-magnetic trip unit: Delivers stable, repeatable protection across a range of temperatures and fault conditions, helping prevent nuisance trips and ensuring reliable Circuit protection.
• 1-pole, 20 A, 120 V: Precisely suited for individual branch circuits in residential, commercial, and light industrial setups.
• OEM panel compatibility: Engineered to pair with matching Square D OEM load centers and panelboards for seamless integration and dependable performance.
• Molded case, plug-in design: Combines compact form with robust protection, ideal for spaces where quick swaps and serviceability matter.

This device is a concrete solution for branch circuit overcurrent and short-circuit protection, ensuring your lighting, outlets, and small appliances stay safeguarded. Whether you’re wiring a home renovation, outfitting a small commercial space, or upgrading a light industrial panel, the QO120AFI delivers predictable performance when it matters most.

Why choose the Square D QO120AFI? It’s not just a breaker — it’s a purpose-built component that emphasizes compatibility, speed, and dependable protection. The plug-in connection reduces labor time during installation and replacement, while the thermal-magnetic trip unit provides consistent protection against both overloads and short circuits. When your project calls for a reliable, easy-to-servicestake in a 1-pole 20 A, 120 V solution, the QO120AFI is designed to fit the way you work.

Technical snapshot

• Manufacturer: Square D
• Part Number: QO120AFI
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 20 A
• Voltage Rating: 120 V
• Number of Poles: 1
• Mounting Style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

For professionals and DIYers alike, the Square D QO120AFI provides a reliable, easy-to-integrate solution that keeps electrical systems safe and compliant. Add it to your panel lineup for a concrete, field-proven balance of protection, compatibility, and serviceability.