Overview
The Square D QO120 is a 20 A, one-pole QO thermal-magnetic circuit breaker for compatible Square D QO load centers and enclosures. It is rated 120/240 V AC with a 10 kA interrupting rating and includes the QO Visi-Trip indication feature for easier identification of a tripped circuit.
Key Features
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Overcurrent protection: Thermal response protects against sustained overloads while magnetic action responds rapidly to short circuits.
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Visi-Trip indication: The visual trip indicator helps distinguish a tripped breaker from one that has simply been switched off.
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Installation: Standard QO plug-in mounting and a pressure-plate load terminal provide a secure connection in compatible equipment.
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Compatibility: Use in Square D QO load centers and enclosures that list QO breakers; this standard model is not a plug-on-neutral electronic breaker.
Specifications
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Manufacturer / model: Schneider Electric Square D QO120
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Electrical rating: 20 A, 1 pole, 120/240 V AC rated, single phase
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Interrupting rating: 10 kA
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Trip / mounting: Thermal-magnetic; QO plug-in
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Terminal / conductor range: Pressure plate; #14–8 AWG copper or aluminum
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Calibration / markings: 40°C; SWD and HACR rated
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Certifications: UL Listed and CSA certified
Common Applications
- 20 A, 120 V lighting and receptacle branch circuits in compatible QO panels.
- Residential and light-commercial circuits whose conductor size and connected load call for a 20 A one-pole breaker.
- Exact-model replacement and panel maintenance where QO120 is specified.
