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Federal Pacific NA3P20 Miniature Circuit Breaker
- 20A
- 3 Pole
- Plug-On
Federal Pacific
NA3P20
Miniature Circuit Breaker
Brand
Federal Pacific
SKU
NA3P20
Quantity
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Federal Pacific NA3P20 - 20A 3 Pole Miniature Circuit Breaker
New
Quantity
Quantity
Federal Pacific NA3P20 - 20A 3 Pole Miniature Circuit Breaker
New
Quantity
| Brand | Federal Pacific |
|---|---|
| Part Number | NA3P20 |
| Series | NA |
| Amperage | 20A |
| Poles | 3 |
| Mounting Style | Plug-On |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 10kA @ 240VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Federal Pacific Stab-Lok Panels |
| Wire Gauge | 14-1/0 AWG |
| Max Wire | 1/0 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Standards | CSA C22.2 No. 5 |
|---|---|
| Approval | CSA |
| Temp Rating | 40C |
| Construction Features | Stab-Lok System, Common Trip, Full Size (1 inch per pole), Color-Coded Handle |
Quantity
Federal Pacific NA3P20 - 20A 3 Pole Miniature Circuit Breaker
Re-Certified
Quantity
| Brand | Federal Pacific |
|---|---|
| Part Number | NA3P20-R |
| Series | NA |
| Amperage | 20A |
| Poles | 3 |
| Mounting Style | Plug-On |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 10kA @ 240VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Federal Pacific Stab-Lok Panels |
| Wire Gauge | 14-1/0 AWG |
| Max Wire | 1/0 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Standards | CSA C22.2 No. 5 |
|---|---|
| Approval | CSA |
| Temp Rating | 40C |
| Construction Features | Stab-Lok System, Common Trip, Full Size (1 inch per pole), Color-Coded Handle |
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Description
Providing a safe and accurate fit for legacy commercial panels, this 20A miniature circuit breaker is an essential maintenance component. It is engineered specifically for Federal Pacific Stab-Lok enclosures, allowing facility managers to replace aging parts without upgrading the entire panelboard. The three-pole unit installs easily into existing slots and features a standard one-inch-per-pole width. It delivers reliable thermal-magnetic protection with a 10kAIC interrupt rating at 240VAC.Specifications
| Brand | Federal Pacific |
|---|---|
| Part Number | NA3P20 |
| Series | NA |
| Amperage | 20A |
| Poles | 3 |
| Mounting Style | Plug-On |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 10kA @ 240VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Federal Pacific Stab-Lok Panels |
| Wire Gauge | 14-1/0 AWG |
| Max Wire | 1/0 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Standards | CSA C22.2 No. 5 |
|---|---|
| Approval | CSA |
| Temp Rating | 40C |
| Construction Features | Stab-Lok System, Common Trip, Full Size (1 inch per pole), Color-Coded Handle |
Product FAQs
6 answersCan I install the NA3P20 in a modern panelboard?
No. The NA3P20 features a proprietary plug-on design that only fits legacy Federal Pacific (FPE) Stab-Lok enclosures. It is not physically or electrically compatible with modern panels from brands like Square D, Eaton, or Siemens.
What is the difference between Federal Pacific NA and NC breakers?
NA series breakers are standard-width, taking up one full inch of space per pole. NC series breakers are a thin, half-inch per pole design. Because the NA3P20 is an NA series breaker, it requires three full one-inch spaces in a Stab-Lok panel.
Are there safety concerns associated with Federal Pacific Stab-Lok breakers?
Yes. Legacy Federal Pacific Electric (FPE) Stab-Lok panels and breakers have a well-documented history of failing to trip under overload or short-circuit conditions, presenting a significant fire hazard. Many licensed electricians and inspectors strongly recommend a complete panel upgrade rather than replacing individual breakers.
Are there modern replacements for Federal Pacific Stab-Lok breakers?
Yes. Connecticut Electric produces new, UL-classified replacement breakers engineered to fit legacy FPE Stab-Lok panels. These aftermarket breakers are built to modern safety standards and provide a safer alternative if a full panel upgrade is not immediately feasible.
How do I identify if my panel accepts Stab-Lok breakers?
Stab-Lok panels typically have a label reading Federal Pacific Electric, FPE, or Federal Pioneer. The bus bars have a distinct slotted design that accepts the proprietary stab-style connection of NA and NC series breakers.
Is there a bolt-on equivalent to the NA3P20?
Yes. While the NA series features a plug-on connection, Federal Pacific manufactured a bolt-on equivalent under the NB series for use in compatible commercial panelboards.
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Reviews
Review summary
Customers rate this product 4.9 out of 5 based on 28 reviews.
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Rating
28 reviews
- JMJimmy M.Verified BuyerReviewingFederal Pacific NA230 - 30A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars9/8/26NA230-30
Breaker arrived well packaged and sealed. Installed easily and working great for the customer.
- JEJames E.Verified BuyerReviewingFederal Pacific NA250 - 50A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars7/23/26Satisfactory
Fast shipping and exactly as expected
- EDErik D.Verified BuyerReviewingFederal Pacific NA250 - 50A 2 Pole Miniature Circuit BreakerI do not recommend this productRated 1 out of 5 stars7/21/26Result of FP
Breakers were wrong size and could not be useful....lost monies.
- JLJeff L.Verified BuyerReviewingFederal Pacific NA20 - 20A 1 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars6/22/26Hard to find breaker
Fit perfectly. Great service
- PPPaul P. J.Verified BuyerReviewingFederal Pacific NA20 - 20A 1 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars12/27/25perfect ...
all is great in the universe the FP 20A Breaker worked perfect.