Documentation & Downloads
Square D QO140 Mini Circuit Breaker 40A 1 Pole 120/240VAC 10kA Plug-In Mount
- MPN: QO140
- UPC: 785901400189
- PPN: SCH-QO140
CAD
$31.58
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Description
Square D™ QO™ and QOB Miniature Circuit Breakers, QO140, come in plug-in mounted version and in a complete range of amperages and interrupting ranges to fit into various QO distribution panels. UL listed CSA certified They also have VisiTrip trip indication, which provides a visual indication that the circuit breaker has tripped and interrupted the circuit. This 1 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.
Features
- Featuring the industry-exclusive QO plug-on design, this 40-amp single-pole breaker provides a high-speed "quick-make, quick-break" mechanism that minimizes internal arcing and contact wear. This ensures rapid circuit interruption during overloads or short circuits, protecting your sensitive electronics and branch wiring from thermal damage more effectively than standard thermal breakers.
- The QO140 includes a highly visible, integrated red indicator window that appears instantly when the breaker trips. This "Visi-Trip" feature eliminates the guesswork for homeowners and maintenance staff, allowing you to identify the specific faulted circuit in a dark electrical panel without having to manually test or reset every handle in the row.
- Designed with a space-saving 0.75-inch width, this breaker is specifically engineered for Square D QO, QO-P, and NQ panels. The compact footprint allows for maximum circuit density within your load center, making it the ideal solution for adding high-amperage dedicated circuits (like those for window AC units or small pumps) where panel space is at a premium.
- This breaker utilizes high-quality pressure plate wire connectors that ensure a tight, low-resistance connection for both copper and aluminum conductors. This superior termination method resists loosening over time—even in environments with subtle mechanical vibrations—reducing the risk of "hot spots" and potential fire hazards at the panel bus bar.
Documentation & Downloads
Specifications
Additional
- Current Rating
- 40 A
- Interrupt Rating
- 10 kA 120/240 V AC 50/60 Hz
- Circuit Breaker Type
- Standard
- Electrical Connection
- Box lugs
- Tightening Torque
- 5 N.m
- Width
- 19 mm (0.75 in)
- Net Weight
- 0.245 kg (0.54 lb)
- Certifications
- UL Listed, CSA Certified
- Halogen Content
- Halogen free product
- China RoHS Regulation
- Product out of China RoHS scope
- Reach Regulation
- Contains SVHC above threshold
- Warranty
- 18 months
- Product Type
- Miniature circuit-breaker
Voltage Rating120/240 V AC
Number of Poles1P
Mounting TypePlug-in
Wire SizeAWG 8...AWG 2 copper or aluminum
Height79 mm (3.11 in)
Depth74 mm (2.91 in)
Ambient Rating40 °C (104 °F)
Mercury FreeYes
Toxic Heavy Metal FreeYes
EU RoHS DirectiveCompliant with exemptions
Sustainable Offer StatusGreen Premium product
Range of ProductQO
Accessories
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CAD
$31.58
/ 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$31.58/ EA
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