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Federal Pacific NA20 Miniature Circuit Breaker
- 20A
- 1 Pole
- Plug-On
Federal Pacific
NA20
Miniature Circuit Breaker
Brand
Federal Pacific
SKU
NA20
Quantity
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Federal Pacific NA20 - 20A 1 Pole Miniature Circuit Breaker
New
Quantity
Quantity
Federal Pacific NA20 - 20A 1 Pole Miniature Circuit Breaker
Re-Certified
Quantity
| Brand | Federal Pacific |
|---|---|
| Part Number | NA20-R |
| Series | NA |
| Amperage | 20A |
| Poles | 1 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Frame Type | NA |
|---|---|
| Terminal Type | Lugs |
| For Use With | Federal Pacific Stab-Lok Load Centers |
| Wire Gauge | 14-2 AWG |
| Max Wire | 2 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Padlock Attachment |
|---|---|
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | SWD Rated, HACR Rated |
Sold out
Quantity
Federal Pacific NA20 - 20A 1 Pole Miniature Circuit Breaker
New
Quantity
| Brand | Federal Pacific |
|---|---|
| Series | NA |
| Amperage | 20A |
| Poles | 1 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Frame Type | NA |
|---|---|
| Terminal Type | Lugs |
| For Use With | Federal Pacific Stab-Lok Load Centers |
| Wire Gauge | 14-2 AWG |
| Max Wire | 2 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Padlock Attachment |
|---|---|
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | SWD Rated, HACR Rated |
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Description
Engineered to support 20-amp branch circuits, this single-pole thermal-magnetic device provides reliable overcurrent protection. It features a standard one-inch width per pole, making it ideal for general-purpose wiring needs. Built exclusively for Federal Pacific Stab-Lok load centers, it replaces the obsolete NA120 model. Electricians can also use the UBIF20N as a modern functional equivalent. Carrying both SWD and HACR designations, it safely controls dedicated heating or cooling equipment.Specifications
| Brand | Federal Pacific |
|---|---|
| Series | NA |
| Amperage | 20A |
| Poles | 1 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Frame Type | NA |
|---|---|
| Terminal Type | Lugs |
| For Use With | Federal Pacific Stab-Lok Load Centers |
| Wire Gauge | 14-2 AWG |
| Max Wire | 2 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Padlock Attachment |
|---|---|
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | SWD Rated, HACR Rated |
Product FAQs
6 answersIs the NA20 a thick or thin format breaker?
The NA20 is the original full-size, 1-inch wide, thick format Stab-Lok breaker. It requires a full 1-inch space in the panel. Do not confuse it with the FPE NC series, which is a 1/2-inch wide, thin format.
What is the modern aftermarket cross-reference for the FPE NA20?
Connecticut Electric manufactures a UL-classified replacement for the NA20 under part number UBIF20N. Be careful not to order the UBIF020N, which is the 1/2-inch wide replacement meant for the NC series.
Does the NA20 replace any older Federal Pacific models?
Yes, the NA20 is a direct replacement for the older FPE NA120 model. Both are 20-amp, 1-pole, 1-inch wide Stab-Lok circuit breakers.
Can I replace a 1/2-inch NC breaker with this 1-inch NA breaker?
You can only substitute an NA20 for an NC breaker if your panel has a full 1-inch space available on the bus bar. If the panel is completely full, you must use a 1/2-inch NC-style breaker to maintain the correct footprint.
What panels are compatible with this 20-amp breaker?
This plug-on breaker is designed exclusively for Federal Pacific Electric (FPE) Stab-Lok load centers. It will not mount into standard load centers from other manufacturers.
Are there known safety issues with original Federal Pacific breakers?
Yes. Original FPE Stab-Lok load centers and breakers have a well-documented history of failing to trip during overcurrent conditions. Many industry professionals recommend replacing the entire panel or upgrading to UL-classified aftermarket replacements if the original equipment is compromised.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 8 reviews.
Total 5 star reviews: 8 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
8 reviews
- JLJeff L.Verified BuyerRated 5 out of 5 stars6/22/26Hard to find breaker
Fit perfectly. Great service
- PPPaul P. J.Verified BuyerRated 5 out of 5 stars12/27/25perfect ...
all is great in the universe the FP 20A Breaker worked perfect.
- MPMACKENLEY P.Verified BuyerRated 5 out of 5 stars7/28/25Federal Pacific NA20 1 Pole Plug-On Circuit Breaker
Great breaker
- BBryanRated 5 out of 5 stars12/30/245 Stars
Works as advertised fits into my breaker box fine as well
- DSDJ S.Rated 5 out of 5 stars1/24/24The BEHEMOTH of Breakers.
Truley outstanding price, expertise, and service.