Schneider Electric QOB250 Mini Circuit Breaker 50A 2-Pole 120/240V AC 10kA Bolt-On Mount

MPN: QOB250
UPC: 785901416982
PPN: SCH-QOB250
UNSPSC: 39121603

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Description

Mini Circuit Breaker 50A 2-Pole 120/240V AC 10kA Bolt-On Mount

Features

Designed specifically for Square D NQ and NQOD panelboards, the QOB250 features a secure bolt-on connection to the bus bar. This mechanical attachment provides a more robust and vibration-resistant installation than standard plug-on breakers, making it the preferred choice for commercial and industrial environments where electrical continuity is critical.
This breaker includes the exclusive red Visi-TripTM indicator window, which instantly flags a tripped state amidst a row of other breakers. This feature saves maintenance personnel valuable time during troubleshooting, allowing for faster reset cycles and significantly reducing downtime in busy commercial facilities.
Providing reliable 50-amp, 2-pole thermal-magnetic protection, this unit is engineered to handle common 120/240V AC loads like HVAC units, water heaters, and industrial motors. Its calibrated "Quick-Make, Quick-Break" mechanism minimizes internal arcing, extending the life of the breaker and ensuring precise protection against both overloads and short circuits.
Equipped with high-quality box lugs and pressure plate terminals, the QOB250 accommodates #8 #2 AWG aluminum or copper wiring. This design ensures a consistent, high-pressure contact that prevents loose connections and overheating a common failure point in high-amperage industrial circuits.

Documentation & Downloads

Specifications

Key Specifications

Country of Origin	Mexico
Depth	74 mm

Weight	113.398 g

Complementary Attributes

Ue Rated Operational Voltage	120/240 V AC, 120 V AC
Rated Current	50 A

Line Rated Current	50 A

Important Information Attributes

Persona Type Ids	EU, EUA, LC, OM, SC
Poles Description	2P
Carbon Footprint Of The Distribution Phase A4	0.014631, 0 kg CO2 eq.
Carbon Footprint Of The Installation Phase A5	0.000028326, 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	Commercial
Awg Gauge	8 AWG...2 AWG copper or aluminium
Circuit Breaker Type	standard
Energy Efficiency Optimized	False
Number Of Poles	2P
Product Availability	Stock - Normally stocked in distribution facility
Range Of Product	QO
Software Version	EIME v5.9.1
Tightening Torque	5-5 N.m
Weee Label	The product must be disposed on European Union markets following specific waste collection and never end up in rubbish bins.
Data Source	extrapolated product
Width Nominal	38 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

Persona Type Names	End User, Consumer, Contractor, Original Equipment Manufacturer, Electrician
Certificate Agency	UL Listed, CSA
Carbon Footprint Of The End Of Life Phase C1 To C4	0 kg CO2 eq., 0.02073
Carbon Footprint Of The Manufacturing Phase A1 To A3	0.7 kg CO2 eq., 0.66261
Local Data Status	Publishable
Return Indicator	Y
Serviceability	No
Field Service Division	PPIBS
Weee Scope	In
Scope Perimeter	At least in 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	COMMERCIAL
Product Kit Identifier	N
Circuit Breaker Application	HACR rated
Electrical Connection	pressure plate
Mounting Mode	bolt-on
Number Of Spaces Required	2
Product Or Component Type	miniature circuit-breaker
Returnability	Yes
Sustainable Packaging	No
Total Lifecycle Carbon Footprint	18 kg CO2 eq.
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

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	18.0022428043
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