Square-D 50-AMP 1-POLE CIRCUIT BREAKERS SQU QO-1-50
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 50A 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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UPC785901400226
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Manufacturer Part NumberQO150
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CountryUSA
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Temperature Rating40 deg C
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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-In
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Voltage Rating120/240 V AC
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Amperage Rating50 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 3.12 in H
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Interrupt Rating10 kA
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Phase1
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Number of Circuits20
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Wiring Configuration3-Wire
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Housing MaterialSheet Steel
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Number of Spaces20
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Enclosure Box Size14.75 in W x 4.52 in D x 26.04 in H
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Enclosure TypeNEMA 3R
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Breaker TypeQO
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Breaker MountingPlug-On
- 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
- Provisions for door lock on convertible mains panel covers
- Side hinged doors on outdoor convertible main panels
- Gray baked enamel surface finish
- Side hinge doors on outdoor convertible main panels
- Gray baked enamel surface finish
- Provisions for door lock on convertible mains panel covers
- Interior mounts quickly and can easily be removed during rough-in for paint or theft protection
- Split branch neutral with up to 50% more terminations than UL requirement - simplifies wiring and reduces clutter
- Indoor enclosures designed to rotate 180 deg to accommodate top or bottom service entrance feed, saving expensive service cable
- Combination slot/square drive neutral, ground and cover screw accommodate both standard flat blade screwdrivers and square head drivers
- Three ground bar mounting locations (left, right and end) make it easier to wire
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Alternative Part Number8027700
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UNSPSC39121603
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IDEA Index ID8027700
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Package DescriptionEACH
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Standards/ApprovalsCSA Certified|HACR Rated|PROP65: Cancer and Reproductive Harm - www.p65warnings.ca.gov|RoHS Compliant|UL Listed
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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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Full Engineering Drawing
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Technical Bulletin
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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 50A 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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