Documentation & Downloads
Square D QO320 Mini Circuit Breaker 20A 3-Pole 120/240VAC 10kA Plug-in Mount
- MPN: QO320
- UPC: 785901400684
- PPN: SCH-QO320
CAD
$284.03
/ EA
Available to Order
Available to Ship Same/Next Business Day if In Stock and Ordered before 12:00 PM EST
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Description
QO and QOB one, two and three pole thermal magnetic circuit breakers provide overcurrent protection and switching on ac and dc systems. These circuit breakers have an over center, trip free toggle mechanism with quick make, quick break action and positive handle indication. They also have VisiTrip trip indication, which provides a visual indication that the circuit breaker has tripped and interrupted the circuit. This 3 pole QO circuit breaker is rated at 20A at 120/240VAC. This unit provides 10kA breaking capacity and plug in mounting. A full line of features and factory installed accessories are also available such as shunt trips, auxiliary switches and alarm switches. QO circuit breakers are UL Listed under UL File E84967 and are CSA Certified under CSA Master Contract 153555. QO circuit breakers are UL Listed under UL File E84967 and are CSA Certified under CSA Master Contract 153555
Features
- The QO320 features Schneider Electric’s exclusive red Visi-Trip™ indicator, which instantly flags a tripped breaker among a row of many. This visual shortcut saves industrial technicians and homeowners significant troubleshooting time, allowing for faster power restoration and less downtime during electrical faults.
- Designed as a dedicated 3-pole breaker, this unit ensures that if any single phase experiences an overcurrent event, all three poles trip simultaneously. This "common trip" functionality is critical for protecting expensive 240V or 208V three-phase motors and machinery from "single-phasing" damage, which can lead to motor burnout and costly repairs.
- This breaker utilizes the industry-standard QO "Plug-On" mounting system, engineered for a secure, bolt-free connection to the bus bar. It is specifically compatible with QO, QOT, and QO3 load centers and NQ-type panelboards, ensuring a fast, reliable installation that maintains the integrity of your Square D distribution system.
- The QO320 utilizes a sophisticated thermal-magnetic trip mechanism that provides a calibrated delay for high-inrush currents—typical of small motors or HVAC compressors—while offering nearly instantaneous protection against short circuits. This dual-action response ensures your equipment starts reliably while maintaining a rigorous safety envelope for your wiring.
Documentation & Downloads
Specifications
Additional
- Current Rating
- 20 A
- Breaking Capacity
- 10 kA 120/240 V AC 50/60 Hz
- Trip Mechanism
- Over center, trip free toggle
- Ambient Temperature Rating
- 40 °C (104 °F)
- Electrical Connection
- Pressure plate
- Tightening Torque
- 4 N·m (35.4 lbf·in)
- Height
- 76 mm (2.99 in)
- Depth
- 74 mm (2.91 in)
- Product Certifications
- UL Listed, CSA Certified, RoHS Compliant
- Halogen Free
- Yes
- Range Of Product
- QO
- Warranty
- 18 months
Voltage120/240 V AC
Circuit Breaker TypeStandard thermal magnetic
Trip IndicationVisiTrip visual indication
Number of Poles3
Wire SizeAWG 14 to AWG 8 copper or aluminum
Mounting TypePlug-in
Width57 mm (2.24 in)
Net Weight0.386 kg (0.85 lb)
Mercury FreeYes
Toxic Heavy Metal FreeYes
Circuit Breaker ApplicationHACR rated
Accessories
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CAD
$284.03
/ EA
Available to Order
Available to Ship Same/Next Business Day if In Stock and Ordered before 12:00 PM EST
Company Stock:
0
Loading dialog...
Looking to buy a large quantity?
To view product inventory
CAD$284.03/ EA
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![Mini circuit breaker, QO, 20A, 1 pole, 120VAC, 10kA, plug in, combo ARC fault, plug on neutral [TAA]](https://images.province-electric.com/SCH-QO120PCAFI/mini-circuit-breaker-qo-20a-small.webp)
