Square D™ QOB370 Standard Miniature Circuit Breaker, 240 V AC/48 V DC, 70 A, 10 kA Interrupt, 3 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 3 pole QO circuit breaker is rated at 70A at 120/240VAC. This unit provides 10kA breaking capacity and bolt on 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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UPC785901019749
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Manufacturer Part NumberQOB370
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CountryUSA|Canada
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Temperature Rating40 deg C
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FrameQOB
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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 TypeBolted-On
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Voltage Rating240 V AC/48 V DC
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Amperage Rating70 A
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Wire Size8 to 2 AWG
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Number of Poles3
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Dimensions3 in H x 2.25 in W x 2.91 in D
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Interrupt Rating10 kA
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Phase3
- 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
- 10 kA at 240 VAC, 5 kA at 48 VDC interrupt rating
- 8 to 2 AWG Al/Cu wire
- Standard
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Alternative Part Number8148985
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UNSPSC39121603
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IDEA Index ID8148985
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Package DescriptionEACH
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Standards/ApprovalsBuy American Act Compliant|RoHS Compliant|UL 489|CSA C22.2 #5|HACR Rated|PROP65: This product can expose you to chemicals including: Diisononyl phthalate (DINP), which is known to the State of California to cause cancer and Di-isodecyl phthalate (DIDP), which is known to the State of California to cause birth defects or other reproductive harm. For more information go to 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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Full Engineering Drawing
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Square D™ QOB370 Standard Miniature Circuit Breaker, 240 V AC/48 V DC, 70 A, 10 kA Interrupt, 3 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 3 pole QO circuit breaker is rated at 70A at 120/240VAC. This unit provides 10kA breaking capacity and bolt on mounting. QO circuit breakers are UL Listed under UL File E84967 and are CSA Certified under CSA Master Contract 153555.
