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Federal Pacific NA3P70 Miniature Circuit Breaker
- 70A
- 3 Pole
- Plug-On
Federal Pacific
NA3P70
Miniature Circuit Breaker
Brand
Federal Pacific
SKU
NA3P70
Quantity
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Federal Pacific NA3P70 - 70A 3 Pole Miniature Circuit Breaker
New
Quantity
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Federal Pacific NA3P70 - 70A 3 Pole Miniature Circuit Breaker
New
Quantity
| Brand | Federal Pacific |
|---|---|
| Part Number | NA3P70 |
| Series | NA |
| Amperage | 70A |
| Poles | 3 |
| Mounting Style | Plug-On |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 10kA @ 240VAC |
| Frame Type | NA |
|---|---|
| Terminal Type | Lugs |
| For Use With | Federal Pacific Stab-Lok Panels |
| Wire Gauge | 4 AWG - 2/0 AWG |
| Max Wire | 2/0 AWG |
| Min Wire | 4 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Standards | CSA C22.2 No. 5, UL 489 |
|---|---|
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Stab-Lok System, Common Trip, Full Size (1 inch per pole) |
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Federal Pacific NA3P70 - 70A 3 Pole Miniature Circuit Breaker
Re-Certified
Quantity
| Brand | Federal Pacific |
|---|---|
| Part Number | NA3P70-R |
| Series | NA |
| Amperage | 70A |
| Poles | 3 |
| Mounting Style | Plug-On |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 10kA @ 240VAC |
| Frame Type | NA |
|---|---|
| Terminal Type | Lugs |
| For Use With | Federal Pacific Stab-Lok Panels |
| Wire Gauge | 4 AWG - 2/0 AWG |
| Max Wire | 2/0 AWG |
| Min Wire | 4 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Standards | CSA C22.2 No. 5, UL 489 |
|---|---|
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Stab-Lok System, Common Trip, Full Size (1 inch per pole) |
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Description
Maintaining legacy infrastructure demands exact-match components to ensure proper operation. The 70-amp NA3P70 serves as a drop-in solution for three-phase commercial and industrial setups utilizing Federal Pacific equipment. It mounts into existing Stab-Lok panelboards, preserving the original busbar connections. With a standard 10kAIC interrupt capacity at 240VAC, this full-size, one-inch-per-pole unit features common trip functionality to disconnect all phases simultaneously during a fault.Specifications
| Brand | Federal Pacific |
|---|---|
| Part Number | NA3P70 |
| Series | NA |
| Amperage | 70A |
| Poles | 3 |
| Mounting Style | Plug-On |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 10kA @ 240VAC |
| Frame Type | NA |
|---|---|
| Terminal Type | Lugs |
| For Use With | Federal Pacific Stab-Lok Panels |
| Wire Gauge | 4 AWG - 2/0 AWG |
| Max Wire | 2/0 AWG |
| Min Wire | 4 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Standards | CSA C22.2 No. 5, UL 489 |
|---|---|
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Stab-Lok System, Common Trip, Full Size (1 inch per pole) |
Product FAQs
8 answersWill the NA3P70 fit in modern load centers from other manufacturers?
No. This breaker features the proprietary Stab-Lok plug-in design and is strictly compatible with legacy Federal Pacific or Federal Pioneer Stab-Lok panels. It will not fit in modern enclosures from brands like Square D, Eaton, or Siemens.
How does the NA3P70 mount into the panel?
It utilizes a plug-in connection specific to the Stab-Lok system. The breaker pushes directly onto the stab-style busbar. It does not use mounting screws or bolts.
What is the difference between the NA3P70 and the NB3P70?
The NA3P70 is a plug-in Stab-Lok breaker, whereas the NB series features a bolt-on connection. You must verify your panel's mounting configuration before installation, as plug-in and bolt-on breakers are not interchangeable.
Are there safety considerations when working with legacy Stab-Lok panels?
Yes. Original Federal Pacific Stab-Lok systems have a documented history of reliability issues, including a higher rate of failure to trip during overcurrent events. When servicing these panels, thoroughly inspect the busbar for signs of arcing or heat damage. Many professionals recommend a complete panel upgrade when feasible.
Can I replace an NC series breaker with this NA series breaker?
It depends on your panel layout. The NA series are thick breakers requiring a full inch per pole, while the NC series are thin, half-inch per pole breakers. You must ensure your panel has adequate physical space and the correct busbar stabs to accept a 3-pole thick frame.
Is the NA3P70 suitable for 480V commercial applications?
No. This breaker is strictly rated for a maximum of 240VAC. Using it on a 480V system violates its design parameters and creates a severe safety hazard.
What wire gauges are accepted by the terminals on the NA3P70?
The mechanical lugs on this breaker are designed to accept wire sizes ranging from 4 AWG to 2/0 AWG. Ensure proper torque specifications are followed during installation to prevent loose connections.
Can Federal Pioneer breakers be used in place of Federal Pacific breakers?
Yes. Federal Pioneer is the Canadian branding of the same Stab-Lok design. A 3-pole, 70-amp Federal Pioneer NA-style breaker is physically and electrically identical and will fit in Federal Pacific Stab-Lok panels.
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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.