



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
/ EA
Available to Ship Same/Next Business Day if In Stock and Ordered before 12:00 PM EST
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Description
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
Key Specifications
- Country of Origin
- Mexico
Complementary Attributes
- Line Rated Current
- 40 A
Important Information Attributes
- Persona Type Ids
- EU, LC, OM
- Certificate Agency
- UL Listed, CSA
- Carbon Footprint Of The Distribution Phase [A4]
- 0.0145796487, 0 kg CO2 eq.
- Carbon Footprint Of The Installation Phase [A5]
- 0.0000282266, 0 kg CO2 eq.
- Carbon Footprint Of The Use Phase [B2 B3 B4 B6]
- 17 kg CO2 eq., 17.3042434783
- Local Publishable Date
- 2026-04-14
- Stocking Flag
- Y
- Device Type
- LV equipment - Low voltage circuit breaker
- Traceability
- No
- Average Life Duration
- 15 year(s)
- Weee Product Category
- 5
- Eoli Availability Display
- No need of specific recycling operations
- Reach Full Compliance Status Id
- CONTAINS_SVHC
- Rohs Eur In Scope
- Yes
- Rohs Eur Conformity Date
- 2534
- China Rohs In Scope
- No
- With Recycled Cardboard
- No
- Product Contributes To Saved And Avoided Emissions
- No
- Tier
- 1
- Function Option
- Standard
- Market Segmentation
- Residential
- Awg Gauge
- 8 AWG...2 AWG copper or aluminium
- Circuit Breaker Type
- standard
- Energy Efficiency Optimized
- False
- Number Of Poles
- 1P
- Product Availability
- Stock - Normally stocked in distribution facility
- Range Of Product
- QO
- Software Version
- EIME v5.9.1
- Tightening Torque
- 5-5 N.m
- Pep Code
- ENVPEP2111016EN
- Pep Verification Date
- 2021-11-01
- Psr Version
- PSR-0005-ed2-EN-2016 03 29
- Data Source
- extrapolated product
- Functional-unit Quantity
- 1
- Reference Lifetime In Y
- 20
- Energy Model - Manufacturing [A1-a3]
- Energy model used: Mexico
- Energy Model - Use [B6]
- Electricity mix; AC; 120V; US / Electricity mix; AC; 127V; MX
- Height Nominal
- 79 mm
- Halogen-free Status
- Halogen free product
- Package Weight(Lbs)
- 127.006 g
- Warranty (In Months)
- 18
Environment Attributes Main
- China Rohs Regulation
- Product out of China RoHS scope , Pro-active China RoHS declaration (out of China RoHS legal scope)
- Halogene Performance
- Halogen free product
- Toxic Heavy Metal Free
- Yes
- Carbon Footprint
- 17.9997929927
- Environmental Disclosure
- ENVPEP2111016EN
- Halogen Content Performance
- Halogen free product
- Packaging Without Single Use Plastic
- Yes
- Pep Code
- ENVPEP2111016EN
- Pcr Version
- PCR-ed3-EN-2015 04 02
- Type Of Verification For The Pep
- Independent internal review
General Attributes
- Product Or Component Type
- miniature circuit-breaker
Contractual Warranty Attributes
- Warranty Period
- 18 months
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CAD
$31.58
/ EA
Available to Ship Same/Next Business Day if In Stock and Ordered before 12:00 PM EST
Loading dialog...
Looking to buy a large quantity?
To View Branch Inventory And Your Custom Pricing
Spec sheet
CAD$31.58/ EA
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