Schneider Electric QO140 Mini Circuit Breaker 40A 1 Pole 120/240VAC 10kA Plug-In Mount

MPN: QO140
UPC: 785901400189
PPN: SCH-QO140
UNSPSC: 39121603

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Description

Mini Circuit Breaker 40A 1 Pole 120/240VAC 10kA Plug-In Mount

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
Depth	74 mm

Weight	113 g

Complementary Attributes

Ue Rated Operational Voltage	120/240 V AC, 120 V AC
Rated Current	40 A

Line Rated Current	40 A

Important Information Attributes

Persona Type Ids	EU, LC, OM
Poles Description	1P
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
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
Database Version	2016-11
Height Nominal	79 mm
Nbr. Of Units In Pkg.	1
Halogen Free Status	Halogen free product
Att N Breaking Capacity 5 Atc N Breaking Capacity	10 kA
Functional Unit Description	Protect during 20 years the installation against overloads and short-circuits in circuit with assigned voltage 120V and rated current 20A. This protection is ensured in accordance with the following parameters:& 10- Number of poles 1p& 10- Rated breaking capacity 10KA
Functional Unit Unit	unit
Energy Consumption On Product Lifetime In Kwh	24.8784

Persona Type Names	End User, Contractor, Original Equipment Manufacturer
Certificate Agency	UL Listed, CSA
Carbon Footprint Of The End Of Life Phase C1 To C4	0 kg CO2 eq., 0.0206572426
Carbon Footprint Of The Manufacturing Phase A1 To A3	0.7 kg CO2 eq., 0.6602843966
Local Data Status	Publishable
Return Indicator	Y
Serviceability	No
Field Service Division	PPIBS
Weee Scope	In
Scope Perimeter	Outside of Europe
Reach Full Compliance Status	Reference contains Substances of Very High Concern above the threshold
Reach Compliance Directive	Reference contains Substances of Very High Concern above the threshold
Rohs Eur Status	Compliant
Rohs Eur Full Compliance Status	Compliant
China Rohs Label	1
Without Single Use Plastic	Yes
Tier Id	1
Function Option Id	STANDARD
Market Segmentation Id	RESIDENTIAL
Product Kit Identifier	N
Circuit Breaker Application	HACR rated
Electrical Connection	pressure plate
Mounting Mode	plug-in
Number Of Spaces Required	1
Product Or Component Type	miniature circuit-breaker
Returnability	Yes
Sustainable Packaging	No
Total Lifecycle Carbon Footprint	18 kg CO2 eq.
Data Source	extrapolated product
Width Nominal	19 mm
Customs Code	8536200040
Warranty In Months	18
Att X Circuit Breaker Type 1	standard
Functional Unit Quantity	1
Reference Lifetime In Y	20
Recyclability Potential In %	29

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

Take Back	No
Recycled Metal Content At Cr Level	0 %
Mercury Free	Yes
Ambient Air Temperature For Operation	40 °C
Eu Rohs Directive	Compliant
Packaging Made With Recycled Cardboard	No
Reach Regulation	Reference contains Substances of Very High Concern above the threshold
Pep Verification Date	2021-11-01
Psr Version	PSR-0005-ed2-EN-2016 03 29