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Wadsworth A280NI Miniature Circuit Breaker
- 80A
- 2 Pole
- Plug-On
Wadsworth
A280NI
Miniature Circuit Breaker
Brand
Wadsworth
SKU
A280NI
Quantity
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Wadsworth A280NI - 80A 2 Pole Miniature Circuit Breaker
Re-Certified
Quantity
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Wadsworth A280NI - 80A 2 Pole Miniature Circuit Breaker
New
Quantity
| Brand | Wadsworth |
|---|---|
| Part Number | A280NI |
| Series | A |
| Amperage | 80A |
| Poles | 2 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Terminal Type | Box Lugs |
|---|---|
| For Use With | Wadsworth Type A Load Centers |
| Wire Gauge | 4 AWG - 1/0 AWG |
| Max Wire | 1/0 AWG |
| Min Wire | 4 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Standards | UL 489 |
|---|---|
| Approval | UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Class CTL |
Sold out
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Wadsworth A280NI - 80A 2 Pole Miniature Circuit Breaker
Re-Certified
Quantity
| Brand | Wadsworth |
|---|---|
| Part Number | A280NI-R |
| Series | A |
| Amperage | 80A |
| Poles | 2 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Terminal Type | Box Lugs |
|---|---|
| For Use With | Wadsworth Type A Load Centers |
| Wire Gauge | 4 AWG - 1/0 AWG |
| Max Wire | 1/0 AWG |
| Min Wire | 4 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Standards | UL 489 |
|---|---|
| Approval | UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Class CTL |
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Description
Engineered to support legacy infrastructure, this 80-amp miniature breaker delivers essential overcurrent defense for residential circuits. It helps facility managers and homeowners keep older electrical systems operational and safe. The device installs into standard Wadsworth Type A panelboards using a simple plug-on mounting style. When original stock is unavailable, the UBIA280NI serves as an exact substitute for this hardware.Specifications
| Brand | Wadsworth |
|---|---|
| Part Number | A280NI-R |
| Series | A |
| Amperage | 80A |
| Poles | 2 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Terminal Type | Box Lugs |
|---|---|
| For Use With | Wadsworth Type A Load Centers |
| Wire Gauge | 4 AWG - 1/0 AWG |
| Max Wire | 1/0 AWG |
| Min Wire | 4 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Standards | UL 489 |
|---|---|
| Approval | UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Class CTL |
Product FAQs
8 answersCan I install the Wadsworth A280NI in a modern electrical panel?
No. The A280NI features a proprietary plug-on design that is only compatible with legacy Wadsworth Type A load centers. It will not fit in modern panels from brands like Square D, Eaton, or Siemens.
Are there aftermarket alternatives available for the Wadsworth A280NI?
Yes. Because Wadsworth is an obsolete brand, Connecticut Electric manufactures a safety-certified direct replacement for this 80-amp breaker, commonly found under the catalog number UBIA280NI.
What is the correct wire size for installing the A280NI breaker?
The box lug terminals on this breaker are designed to accept wiring ranging from 4 AWG to 1/0 AWG. Always verify that your wire gauge safely supports an 80-amp load according to current electrical codes.
Is the 10kA AIC rating on the A280NI sufficient for residential use?
Yes, a 10,000 Ampere Interrupting Capacity (AIC) is the standard fault current rating for most residential and light commercial Wadsworth load centers.
How does the thermal-magnetic trip function protect the circuit?
The thermal component provides a delayed trip to prevent nuisance tripping during temporary overloads, while the magnetic component trips instantaneously to protect the system from severe short circuits.
Will this 80-amp breaker fit in a standard Wadsworth Type A slot?
Yes, it is designed to plug directly into the busbar of a Wadsworth Type A panel. Because it is a 2-pole breaker, it will occupy two adjacent spaces in the load center.
What applications typically require an 80-amp 2-pole breaker like the A280NI?
An 80-amp, 240-volt breaker is commonly used to feed residential subpanels or to protect heavy-duty electrical loads such as large electric heating systems and commercial equipment.
Does the A280NI require special mounting hardware?
No. It utilizes a standard plug-on connection that snaps directly onto the busbar of a Wadsworth Type A load center without the need for additional mounting screws or brackets.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 5 reviews.
Total 5 star reviews: 5 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
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Rating
5 reviews
- PSPaul S.Verified BuyerReviewingWadsworth A15NI - 15A 1 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars7/14/26Worked fine, glad to have it.
I had no idea how much it could cost.
- DPDavid P.Verified BuyerReviewingSquare D 9065ARO1R Overload RelayI recommend this productRated 5 out of 5 stars11/3/25Loved it!
Fantastic!!!
- KJKevin J.ReviewingWadsworth A260NI - 60A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars1/11/24Great deal
Came on time in great shape
- VJVernice J.ReviewingWadsworth A240NI - 40A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars7/16/20Order of Breaker
This company did an excellent job with providing a good part and delivery exceeded my expectations.
- HOHugh O.ReviewingGeneral Electric AF43S Panel Board CoverI recommend this productRated 5 out of 5 stars9/24/17Breaker panel
I recently purchased a breaker panel cover. It arrived in a timely manner well packed and unharmed.
The shipping was free so I was sceptical.
All is well.