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Wadsworth A15NI Miniature Circuit Breaker
- 15A
- 1 Pole
- Plug-On
Wadsworth
A15NI
Miniature Circuit Breaker
Brand
Wadsworth
SKU
A15NI
Quantity
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Wadsworth A15NI - 15A 1 Pole Miniature Circuit Breaker
Re-Certified
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Wadsworth A15NI - 15A 1 Pole Miniature Circuit Breaker
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Quantity
| Brand | Wadsworth |
|---|---|
| Part Number | A15NI |
| Series | A |
| Amperage | 15A |
| Poles | 1 |
| Mounting Style | Plug-On |
| Voltage | 120VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120VAC |
| Frame Type | A-NI |
|---|---|
| Terminal Type | Box Lugs |
| For Use With | Wadsworth Type A Load Centers |
| Wire Gauge | 14-6 AWG |
| Max Wire | 6 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Curve | B |
| Trip Adjustability | Fixed |
| Standards | UL 489 |
|---|---|
| Approval | UL |
| Temp Rating | 40°C |
| Construction Features | HACR Rated, SWD Rated, Class CTL |
Quantity
Wadsworth A15NI - 15A 1 Pole Miniature Circuit Breaker
Re-Certified
Quantity
| Brand | Wadsworth |
|---|---|
| Part Number | A15NI-R |
| Series | A |
| Amperage | 15A |
| Poles | 1 |
| Mounting Style | Plug-On |
| Voltage | 120VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120VAC |
| Frame Type | A-NI |
|---|---|
| Terminal Type | Box Lugs |
| For Use With | Wadsworth Type A Load Centers |
| Wire Gauge | 14-6 AWG |
| Max Wire | 6 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Curve | B |
| Trip Adjustability | Fixed |
| Standards | UL 489 |
|---|---|
| Approval | UL |
| Temp Rating | 40°C |
| Construction Features | HACR Rated, SWD Rated, Class CTL |
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Description
Maintaining vintage electrical systems is simple with the right hardware. This 15-amp, single-pole breaker is manufactured to fit Wadsworth Type A load centers. Compatibility is crucial when servicing older residential panels. This plug-on component requires no modifications to install and serves as the original version of the UBIA15NI replacement. Delivering 10kAIC interrupting capacity at 120VAC, it includes HACR and SWD ratings. The Class CTL design prevents overstuffing.Specifications
| Brand | Wadsworth |
|---|---|
| Part Number | A15NI-R |
| Series | A |
| Amperage | 15A |
| Poles | 1 |
| Mounting Style | Plug-On |
| Voltage | 120VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120VAC |
| Frame Type | A-NI |
|---|---|
| Terminal Type | Box Lugs |
| For Use With | Wadsworth Type A Load Centers |
| Wire Gauge | 14-6 AWG |
| Max Wire | 6 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Curve | B |
| Trip Adjustability | Fixed |
| Standards | UL 489 |
|---|---|
| Approval | UL |
| Temp Rating | 40°C |
| Construction Features | HACR Rated, SWD Rated, Class CTL |
Product FAQs
5 answersWhat panels accept the Wadsworth A15NI breaker?
The A15NI is a 1-pole miniature circuit breaker engineered specifically for Wadsworth Type A load centers. Because Wadsworth is a legacy brand with a unique bus bar design, this breaker is not interchangeable with other panel brands.
What wire gauge can I use with the A15NI breaker lugs?
The box lug terminals on this breaker accommodate wire sizes from 14 AWG to 6 AWG. Always verify that your chosen wire gauge meets current electrical codes for a 15-amp branch circuit.
How does the Wadsworth A15NI mount into the panel?
This breaker utilizes a standard plug-in mounting style. It presses directly onto the bus bar of compatible Wadsworth Type A load centers without requiring mounting screws, making panel installation fast and straightforward.
Are there modern replacements available for the Wadsworth A15NI?
Yes. Because original Wadsworth components are now obsolete, manufacturers like Connecticut Electric produce new, UL-classified replacements. The Connecticut Electric UBIA series includes direct 1-pole, 15-amp drop-in replacements designed specifically for Wadsworth Type A load centers.
How does the thermal-magnetic trip mechanism operate in the A15NI?
The thermal-magnetic (LI) mechanism provides two layers of protection. The thermal, or long-time, function responds to prolonged overcurrent conditions, while the magnetic, or instantaneous, function trips the breaker immediately in the event of a severe short circuit.
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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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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.