Documentation & Downloads
Square D QO340 Mini Circuit Breaker, 40A, 3 Pole, 120/240VAC, 10kA Breaking Capacity
- MPN: QO340
- UPC: 785901400769
- PPN: SCH-QO340
CAD
$292.43
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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 40A 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
- Specifically designed for Square D QO load centers, NQ panelboards, and speed-D switchboard distribution panels, this 3-pole breaker features the industry-preferred plug-on design. This ensures a fast, secure connection to the bus bar without the need for complex mounting hardware, making it the go-to choice for commercial contractors and industrial maintenance teams.
- Featuring Schneider’s exclusive Visi-Trip indicator, a high-visibility red window appears the moment the breaker trips. This "set it and forget it" diagnostic tool saves critical time during facility troubleshooting by instantly distinguishing a tripped breaker from one that has simply been turned off, allowing for rapid power restoration.
- Carrying a dedicated HACR (Heating, Air Conditioning, and Refrigeration) rating, this unit is factory-tested to handle the high inrush currents typical of compressor-based machinery. This rating ensures long-term durability and prevents nuisance tripping during equipment startup, maintaining consistent climate control in professional environments.
- Equipped with robust box lugs, this breaker accommodates #8 to #2 AWG copper or aluminum wire with a consistent, high-torque clamping force. These professional-grade terminals minimize electrical resistance and heat buildup at the connection point, ensuring your industrial installation remains code-compliant and fire-safe for years to-come.
Documentation & Downloads
Specifications
Additional
- Rated Current
- 40 A
- Breaking Capacity
- 10 kA 120/240 V AC 50/60 Hz
- Circuit Breaker Type
- Standard
- Mounting Type
- Plug-in
- Wire Size
- AWG 8 to AWG 2 copper or aluminum
- Height
- 76 mm (2.99 in)
- Depth
- 74 mm (2.91 in)
- Ambient Air Temperature For Operation
- 40 °C (104 °F)
Voltage120/240 V AC
Poles3
Circuit Breaker ApplicationHACR rated
Electrical ConnectionBox lugs
Tightening Torque5 N.m
Width57 mm (2.24 in)
Net Weight0.363 kg (0.80 lb)
Product CertificationsUL Listed, CSA Certified, RoHS Compliant
Accessories
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CAD
$292.43
/ EA
Available to Order
Available to Ship Same/Next Business Day if In Stock and Ordered before 12:00 PM EST
Company Stock:
0
Looking to buy a large quantity?
To view product inventory
CAD$292.43/ EA
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