Square D QO120C 20A Single Pole Circuit Breaker 120V

Product Description

The Square D QO120C is a single-pole circuit breaker rated at 20 amps and 120 volts, designed for installation in Square D QO load centers and meter combos. It occupies one space per pole and features Square D's Visi-Trip indicator, which clearly shows when the breaker has tripped, simplifying diagnostics during service calls. The QO120C is packaged in a recloseable clamshell and sold in quantities of six per package, making it a practical stocking item for residential electrical contractors and service electricians who routinely replace or add branch circuits.

This breaker is intended for residential and light commercial branch circuit protection in Square D QO-series load centers. Typical applications include general-purpose 20-amp circuits serving receptacles, small appliances, garage outlets, and similar 120-volt branch loads. Its compact one-space design is well suited for panel upgrades and service calls where space inside the enclosure is limited. Licensed electricians install this breaker during new construction, panel replacements, or circuit additions under permit.

Key Features

• 20-amp, 120-volt single-pole overcurrent protection for branch circuits
• One space per pole for efficient use of load center capacity
• Recloseable clamshell packaging keeps individual breakers organized on the service truck
• Sold six units per package, supporting bulk stocking for high-volume electrical contractors
• Designed for the QO load center product family for reliable mechanical and electrical fit

Compatibility

Designed for use in Square D QO-series load centers and meter combos requiring a single-pole, 20-amp, 120-volt branch circuit breaker with a one-space-per-pole footprint.

Installation Notes

Installation must be performed by a licensed electrician in accordance with NFPA 70 (National Electrical Code) and all applicable local codes. De-energize the panel and verify absence of voltage before handling any breaker or wiring inside the enclosure. Seat the breaker firmly into the load center bus until the clip engages, then connect the branch circuit conductor to the breaker terminal per the panel's wiring diagram. Do not exceed the breaker's marked ampere rating when selecting conductor size or load.