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Wadsworth A220NI Miniature Circuit Breaker
- 20A
- 2 Pole
- Plug-On
Wadsworth
A220NI
Miniature Circuit Breaker
Brand
Wadsworth
SKU
A220NI
Quantity
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Wadsworth A220NI - 20A 2 Pole Miniature Circuit Breaker
Re-Certified
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Wadsworth A220NI - 20A 2 Pole Miniature Circuit Breaker
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| Brand | Wadsworth |
|---|---|
| Part Number | A220NI |
| Series | A |
| Amperage | 20A |
| 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 | 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 Adjustability | Fixed |
| Standards | UL 489 |
|---|---|
| Approval | UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Class CTL |
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Wadsworth A220NI - 20A 2 Pole Miniature Circuit Breaker
Re-Certified
Quantity
| Brand | Wadsworth |
|---|---|
| Part Number | A220NI-R |
| Series | A |
| Amperage | 20A |
| 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 | 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 Adjustability | Fixed |
| Standards | UL 489 |
|---|---|
| Approval | UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Class CTL |
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Description
Maintaining older electrical systems requires precise components, and the A220NI delivers exactly that for 20-amp circuits. This two-pole device provides essential overcurrent safety for homes equipped with vintage distribution equipment. Installation is straightforward since it fits perfectly into Wadsworth Type A enclosures. When original stock is unavailable, the UBIA220NI serves as the modern replacement option. The non-interchangeable trip mechanism ensures consistent performance.Specifications
| Brand | Wadsworth |
|---|---|
| Part Number | A220NI-R |
| Series | A |
| Amperage | 20A |
| 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 | 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 Adjustability | Fixed |
| Standards | UL 489 |
|---|---|
| Approval | UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Class CTL |
Product FAQs
6 answersWhat load centers are compatible with the Wadsworth A220NI?
This breaker is designed exclusively for legacy Wadsworth Type A load centers. It features a specific plug-on mounting clip that fits the busbar design of these vintage enclosures.
Is there a modern replacement available for the Wadsworth A220NI?
Yes. Because Wadsworth is a defunct legacy brand, Connecticut Electric manufactures a direct replacement under the catalog number UBIA220NI.
What does the "NI" designation mean on this Wadsworth breaker?
The "NI" stands for Non-Interchangeable. This indicates a Class CTL (Circuit Total Limiting) configuration, which prevents the installation of more breakers than the panelboard is rated to accept.
What wire gauge is accepted by the terminals on the A220NI?
The box lugs on this breaker accommodate wire sizes from 14 AWG to 6 AWG. Always verify the appropriate wire size for a 20-amp circuit based on current National Electrical Code (NEC) requirements.
How does the trip mechanism function on the A220NI?
It utilizes fixed thermal-magnetic trip technology. The thermal element provides a long-time delay to prevent nuisance tripping on temporary overloads, while the magnetic element offers an instantaneous response to clear severe short circuits.
What types of loads are typically protected by a 20-amp, two-pole breaker?
In residential and light commercial applications, a 20-amp, 240-volt breaker is commonly installed for dedicated equipment such as baseboard heaters, well pumps, or small air conditioning units.
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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.