The Square D QO120 is a 1-pole, 20-amp, 120V plug-in circuit breaker from the QO series — one of the most widely used residential and light commercial breakers in North America. It features Square D's exclusive Visi-Trip indicator that clearly shows when a breaker has tripped, making troubleshooting fast and easy. The QO120 snaps directly into QO loadcenters and is compatible with Homeline panels using an adapter. With a 10kAIC interrupting rating, it handles standard residential branch circuit protection reliably.
| Specification | Value |
|---|---|
| Amperage | 20A |
| Poles | 1 |
| Voltage | 120VAC |
| Interrupt Rating | 10kA @ 120V |
| Frame Size | QO (70A Frame) |
| Mounting Type | Plug-In |
| Trip Type | Thermal Magnetic |
| Trip Function | LI — Long-Time, Instantaneous |
| Wire Size | 14–10 AWG (Cu/Al) |
| Phase | 1-Phase |
| Standards | UL 489, CSA C22.2 No.5, NEMA AB 1 |
| Temperature Rating | 40°C |
Square D QO Plug-In 20A 1-pole circuit breaker. In stock at AllBreakerSales.com. Call (877) 611-0034 for same-day pricing. Genuine OEM parts, ships from US warehouse.
Brand: Square D | Series: QO Plug-In | Catalog Number: QO120
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