The Square D QO™ QO120CP is a premium 20‑amp, single‑pole circuit breaker engineered to provide dependable overload and short‑circuit protection for residential and light commercial electrical systems. As part of Square D’s flagship QO™ product line, this breaker delivers fast, reliable circuit interruption and long‑term durability trusted by electricians and electrical professionals.
Designed exclusively for use with Square D QO™ load centers, the QO120CP protects standard 120‑volt branch circuits powering receptacles, lighting, and general‑purpose electrical loads. Its compact plug‑in design ensures a secure fit within the panel, while Square D’s proven thermal‑magnetic technology responds accurately to both sustained overloads and sudden fault conditions.
A hallmark of the QO™ series is the Visi‑Trip™ indicator, which provides a clear visual signal when the breaker trips. An orange indicator appears in the viewing window, allowing quick identification of the affected circuit without removing the panel cover. This feature reduces troubleshooting time, improves maintenance efficiency, and enhances overall electrical safety.
Key Features
20‑amp, single‑pole breaker for standard 120‑volt branch circuits
Provides overload and short‑circuit protection
Exclusive Visi‑Trip™ visual trip indicator for fast identification of tripped circuits
Plug‑in mounting style for quick and secure installation
Compact design uses one panel space
High‑quality construction for long service life and dependable performance
Designed exclusively for Square D QO™ load centers
Trusted Square D reliability for residential and light commercial applications
Specifications
Manufacturer: Square D by Schneider Electric
Series: QO™
Model Number: QO120CP
Breaker Type: Thermal‑magnetic circuit breaker
Current Rating: 20 Amps
Number of Poles: 1
Voltage Rating: 120/240
Interrupting Rating: 10,000 AIC
Mounting Type: Plug‑in
Trip Indicator: Visi‑Trip™
Spaces Required: 1
Panel Compatibility: Square D QO™ load centers only
Certifications: UL Listed, CSA certified
Intended Use: Residential and light commercial
Applications
General‑purpose receptacle circuits
Kitchen and dining area branch circuits (where GFCI is not required)
Lighting circuits
Living rooms, bedrooms, and hallways
Home offices and small commercial office spaces
Dedicated circuits for moderate electrical loads
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BrandSquare D
Number of Poles1
Amperage Rating20 A
Frame100a
Frequency Rating50/60 Hz
Interrupt Rating10 kA
Mounting TypePlug On
Number of Poles1
Overall Depth2.91 In
Phase1
SeriesQO
StandardsAnsi Specified, Csa Certified, Ul Listed
Terminal TypePressure Plate/screw Clamp
Trip TypeFixed
TypeType Qo, Standard
UsageFor Qo Load Centers And Nqod Panelboards, Speed-d Switchboard Distribution Panels