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Square D QOU280 Miniature Circuit Breaker
- 80A
- 2 Pole
- Unit Mount
Square D
QOU280
Miniature Circuit Breaker
Brand
Square D
SKU
QOU280
Quantity
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Square D QOU280 - 80A 2 Pole Miniature Circuit Breaker
New
Quantity
Quantity
Square D QOU280 - 80A 2 Pole Miniature Circuit Breaker
New
Quantity
| Brand | Square D |
|---|---|
| Part Number | QOU280 |
| Series | QOU |
| Amperage | 80A |
| Poles | 2 |
| Mounting Style | Unit Mount |
| Voltage | 120/240VAC, 60VDC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC, 5kA @ 60VDC |
| Frame Type | QOU |
|---|---|
| Terminal Type | Box Lugs |
| For Use With | DIN Rail Systems, OEM Panels, Control Panels, Enclosures |
| Wire Gauge | 12-2/0 AWG (Al/Cu) |
| Max Wire | 2/0 AWG |
| Min Wire | 12 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Mounting Feet, Padlock Attachment, Auxiliary Switch, Alarm Switch, Shunt Trip |
|---|---|
| Accessories | Line and Load Lugs Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489, HACR Rated |
| Approval | CSA, HACR, IEC, UL |
| Temp Rating | 40C |
Sold out
Quantity
Square D QOU280 - 80A 2 Pole Miniature Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Part Number | QOU280-R |
| Series | QOU |
| Amperage | 80A |
| Poles | 2 |
| Mounting Style | Unit Mount |
| Voltage | 120/240VAC, 60VDC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC, 5kA @ 60VDC |
| Frame Type | QOU |
|---|---|
| Terminal Type | Box Lugs |
| For Use With | DIN Rail Systems, OEM Panels, Control Panels, Enclosures |
| Wire Gauge | 12-2/0 AWG (Al/Cu) |
| Max Wire | 2/0 AWG |
| Min Wire | 12 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Mounting Feet, Padlock Attachment, Auxiliary Switch, Alarm Switch, Shunt Trip |
|---|---|
| Accessories | Line and Load Lugs Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489, HACR Rated |
| Approval | CSA, HACR, IEC, UL |
| Temp Rating | 40C |
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Description
Part of the QOU series, the Square D QOU280 is a 2-pole, 80A miniature circuit breaker designed for surface, flush, or DIN rail mounting. It mounts into OEM panels, control enclosures, and custom distribution systems, offering exceptional wiring flexibility with its reversible line and load box lugs. Rated at 10 kAIC at 120/240VAC, this HACR-rated breaker includes the signature Visi-Trip indicator, allowing maintenance personnel to quickly spot a tripped circuit in crowded panels.Specifications
| Brand | Square D |
|---|---|
| Part Number | QOU280 |
| Series | QOU |
| Amperage | 80A |
| Poles | 2 |
| Mounting Style | Unit Mount |
| Voltage | 120/240VAC, 60VDC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC, 5kA @ 60VDC |
| Frame Type | QOU |
|---|---|
| Terminal Type | Box Lugs |
| For Use With | DIN Rail Systems, OEM Panels, Control Panels, Enclosures |
| Wire Gauge | 12-2/0 AWG (Al/Cu) |
| Max Wire | 2/0 AWG |
| Min Wire | 12 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Mounting Feet, Padlock Attachment, Auxiliary Switch, Alarm Switch, Shunt Trip |
|---|---|
| Accessories | Line and Load Lugs Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489, HACR Rated |
| Approval | CSA, HACR, IEC, UL |
| Temp Rating | 40C |
Product FAQs
5 answersHow is the QOU280 mounted in a panel or enclosure?
This unit-mount breaker can be installed on a standard 35mm DIN rail, surface-mounted, or flush-mounted using mounting feet. Its cable-in, cable-out design makes it highly adaptable for OEM panels and custom control enclosures.
Can I reverse the line and load connections on this breaker?
Yes, the QOU280 features reversible line and load box lugs. This allows you to feed power from either direction without compromising the thermal-magnetic protection capabilities.
Can I add a shunt trip or auxiliary switch to the QOU280 in the field?
No, accessories like shunt trips and auxiliary switches cannot be field-installed on QOU series breakers. They must be ordered as factory-installed options from Schneider Electric.
How can I tell if the QOU280 has tripped?
This breaker features the Square D Visi-Trip visual indicator. When the breaker trips due to an overcurrent or short circuit, a highly visible red indicator appears in the window, making it easy to identify the tripped circuit in a crowded panel.
Is the QOU280 suitable for use with HVAC equipment?
Yes, this breaker is HACR rated, meaning it is approved for use with heating, air conditioning, and refrigeration equipment that requires overcurrent protection.
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Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.
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All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.
Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 106 reviews.
Reviews Summary
Generated by AI from 99 most recent customer reviews
Last updated 5/14/26
Customers say these circuit breakers function properly and arrive quickly. Many reviews highlight fast shipping, competitive pricing, and reliable product condition upon arrival. Users appreciate the wide selection, including hard-to-find models, and note the breakers work as expected for various applications. Common feedback addresses quick order processing and easy website navigation. Most customers report satisfaction with value and delivery speed, with many indicating they will purchase again.
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Rating
106 reviews
- HLHOMETIGO L.Verified BuyerReviewingSquare D QOU260 - 60A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars9/7/26Good thing
i recommend this for you
- RGRobert G.Verified BuyerReviewingSquare D QOU340 - 40A 3 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars9/3/26Circuit breakers
I appreciate the fact that you had these in stock. my Square D distributor does not seem to stock these anymore and it takes a couple weeks to get. your pricing is inline with theirs.
- THTiffany H.Verified BuyerReviewingSquare D QOU115 - 15A 1 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars8/28/26Will use Super Breakers again
Arrived in a timely manner. Exactly what we needed for a job.
- CSCary S.Verified BuyerReviewingSquare D QOU250 - 50A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars8/12/26Just what I ordered
Just what I needed for dock pedestal
- MHMark H.Verified BuyerReviewingSquare D QOU250VH - 50A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars8/11/26Square D QOU250VH - 50A 2 Pole Miniature Circuit Breaker
Was just what I expected!