Square D QOB250 Mini Circuit Breaker 50A 2-Pole 120/240V AC 10kA Bolt-On Mount
- MPN: QOB250
- UPC: 785901416982
- PPN: SCH-QOB250
CAD
$121.12
/ EA
Available to Order
Available to Ship Same/Next Business Day if In Stock and Ordered before 12:00 PM EST
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Spec sheet
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 |
|---|
Complementary Attributes
| Rated Current | 50 A |
|---|
| Line Rated Current | 50 A |
|---|
Important Information Attributes
| Persona Type Ids | EU, EUA, LC, OM, SC |
|---|---|
| Certificate Agency | UL Listed, CSA |
| 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 |
| Stocking Flag | N |
| 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 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. |
| Database Version | 2016-11 |
| Pcr Version | PCR-ed3-EN-2015 04 02 |
| Type Of Verification For The Pep | Independent internal review |
| 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 |
| Energy Model - Installation [A5] | Electricity mix; AC; 120V; US / Electricity mix; AC; 127V; MX |
| Energy Model - End Of Life [C1-c4] | Electricity mix; AC; 120V; US / Electricity mix; AC; 127V; MX |
| Width Nominal | 38 mm |
| Nbr. Of Units In Pkg. | 1 |
| Take-back | No |
| Air Pollution (M3) Manufacturing [A1-a3] | 151.37 |
| Depletion Of Abiotic Resources - Fossil Fuels (Mj) Manufacturing [A1-a3] | 11.117 |
| Non-hazardous Waste Disposed Of (Kg) Manufacturing [A1-a3] | 0.5096 |
| Total Use Of Primary Energy During The Life Cycle (Mj) Manufacturing [A1-a3] | 17.625 |
| Use Of Non-renewable Primary Energy Resources Used As Raw Materials (Mj) Manufacturing [A1-a3] | 1.8135 |
| Water Pollution (M3) Manufacturing [A1-a3] | 54.627 |
| Water Pollution (M3) End Of Life [C1-c4] | 1.4907 |
| Persona Type Names | End User, Consumer, Contractor, Original Equipment Manufacturer, Electrician |
|---|---|
| [Ue] Rated Operational Voltage | 120/240 V AC, 120 V AC |
| 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 |
| 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 |
| Poles Description | 2P |
| Product Or Component Type | miniature circuit-breaker |
| Returnability | Yes |
| Sustainable Packaging | No |
| Total Lifecycle Carbon Footprint | 18 kg CO2 eq. |
| 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) | 113.398 g |
| Warranty (In Months) | 18 |
| Air Pollution (M3) End Of Life [C1-c4] | 1.1802 |
| Hazardous Waste Disposed Of (Kg) Manufacturing [A1-a3] | 3.9784 |
| Total Use Of Non-renewable Primary Energy Resources (Primary Energy And Primary Energy Resources Used As Raw Materials) (Mj) Manufacturing [A1-a3] | 17.047 |
| Use Of Non-renewable Primary Energy Resources Used As Raw Materials (Mj) Total Life Cycle | 1.8135 |
| Use Of Non-renewable Primary Energy Excluding Non-renewable Primary Energy Resources Used As Raw Materials (Mj) Manufacturing [A1-a3] | 15.234 |
| Water Pollution (M3) Distribution [A4] | 2.406 |
| Customs Code | 8536200040 |
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 |
General Attributes
| Product Or Component Type | miniature circuit-breaker |
|---|
| Range Of Product | QO |
|---|
ETIM
| ETIM 8 | EC000042 |
|---|
| ETIM 9 | EC000042 |
|---|
Contractual Warranty Attributes
| Warranty Period | 18 months |
|---|
| Warranty | 18 months |
|---|
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CAD
$121.12
/ EA
Available to Order
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$121.12/ EA
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