Square D™ QO140 Standard Miniature Circuit Breaker, 120/240 V AC, 40 A, 10 kA Interrupt, 1 Poles, Thermal Magnetic Trip
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. A full line of features and factory installed accessories are also available such as shunt trips, auxiliary switches and alarm switches. This 1 pole QO circuit breaker is rated at 40A at 120/240VAC. This unit provides 10kA breaking capacity and plug in mounting. QO circuit breakers are UL Listed under UL File E84967 and are CSA Certified under CSA Master Contract 153555.
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BrandSquare D™
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UPC785901400189
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Manufacturer Part NumberQO140
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CountryUSA|Canada
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Temperature Rating104 deg F
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FrameQO
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Frequency Rating50/60 Hz
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Trip TypeThermal Magnetic
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TypeStandard
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Connection TypeBox Lug
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Mounting TypePlug-On
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Voltage Rating120/240 V AC
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Amperage Rating40 A
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Wire Size8 to 2 AWG
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Number of Poles1
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Dimensions2.91 in L x 0.75 in W x 3 in H
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Interrupt Rating10 kA
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Phase1
- Reliable and durable
- Plug-on neutral design and shorter footprint for faster installs
- Simple design and clear instructions for quick setup
- Time-saving diagnostics with touch of a button
- The tripping mechanisms in two-and three-pole circuit breakers operate such that an overcurrent on any pole of the circuit breaker will cause all poles of the circuit breaker to open simultaneously
- Standard
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Alternative Part Number8027669
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UNSPSC39121603
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IDEA Index ID8027669
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Package DescriptionEACH
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Standards/ApprovalsBuy American Act Compliant|RoHS Compliant|UL Listed|CSA Certified|HACR Rated|PROP65: Cancer and Reproductive harm - www.P65warnings.ca.gov
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Warranty18 months
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RoHS
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Specification Sheet
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Owners/User Manual
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Technical Bulletin
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Square D™ QO140 Standard Miniature Circuit Breaker, 120/240 V AC, 40 A, 10 kA Interrupt, 1 Poles, Thermal Magnetic Trip
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. A full line of features and factory installed accessories are also available such as shunt trips, auxiliary switches and alarm switches. This 1 pole QO circuit breaker is rated at 40A at 120/240VAC. This unit provides 10kA breaking capacity and plug in mounting. QO circuit breakers are UL Listed under UL File E84967 and are CSA Certified under CSA Master Contract 153555.
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