Federal Pacific NA2P125 Miniature Circuit Breaker
- 125A
- 2 Pole
- Plug-On
Federal Pacific
NA2P125
Miniature Circuit Breaker
Brand
Federal Pacific
SKU
NA2P125
Quantity
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Federal Pacific NA2P125 - 125A 2 Pole Miniature Circuit Breaker
Re-Certified
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Federal Pacific NA2P125 - 125A 2 Pole Miniature Circuit Breaker
New
Quantity
| Brand | Federal Pacific |
|---|---|
| Part Number | NA2P125 |
| Series | NA |
| Amperage | 125A |
| Poles | 2 |
| 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 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 |
|---|---|
| Approval | CSA |
| Temp Rating | 40C |
| Construction Features | Stab-Lok System, Common Trip, Full Size (1 inch per pole) |
Quantity
Federal Pacific NA2P125 - 125A 2 Pole Miniature Circuit Breaker
Re-Certified
Quantity
| Brand | Federal Pacific |
|---|---|
| Part Number | NA2P125-R |
| Series | NA |
| Amperage | 125A |
| Poles | 2 |
| 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 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 |
|---|---|
| Approval | CSA |
| Temp Rating | 40C |
| Construction Features | Stab-Lok System, Common Trip, Full Size (1 inch per pole) |
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Description
Serving as a critical component for legacy systems, the NA2P125 delivers 125 amps of thermal-magnetic protection. The thick one-inch-per-pole format matches the original specifications of vintage FPE hardware. It mounts into existing Stab-Lok panelboards, ensuring a proper mechanical connection without modifications. When original stock is unavailable, the UBIFPE125N serves as a recognized modern substitute. Featuring a standard 10kA short-circuit rating, this unit includes a common trip.Specifications
| Brand | Federal Pacific |
|---|---|
| Part Number | NA2P125-R |
| Series | NA |
| Amperage | 125A |
| Poles | 2 |
| 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 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 |
|---|---|
| Approval | CSA |
| Temp Rating | 40C |
| Construction Features | Stab-Lok System, Common Trip, Full Size (1 inch per pole) |
Product FAQs
5 answersWhich panels are compatible with the NA2P125?
This plug-on breaker is designed exclusively for legacy Federal Pacific Electric (FPE) and Federal Pioneer Stab-Lok load centers. It will not fit into standard interchangeable panels from other manufacturers.
How much panel space does the NA2P125 require?
The NA series utilizes a thick 1-inch-per-pole casing. Because this is a 2-pole breaker, it occupies two full-size Stab-Lok spaces, requiring 2 inches of total width on the panel busbar.
What are the modern aftermarket cross-references for this breaker?
When original OEM stock is unavailable, the UBIFPE125N manufactured by Connecticut Electric serves as a recognized modern substitute. The Federal Pioneer 2P125FED is also a direct compatible alternative.
Is this breaker interchangeable with Federal Pioneer components?
Yes. Federal Pacific and Federal Pioneer share the exact same Stab-Lok connection design. This breaker can be installed in Federal Pioneer load centers requiring a 125A 2-pole breaker.
What safety considerations apply when servicing Stab-Lok panels?
Legacy FPE Stab-Lok load centers have a documented industry history of safety concerns, primarily related to breakers failing to trip under overcurrent conditions. Electricians should thoroughly inspect the panel for arcing, busbar damage, and ensure a secure mechanical connection before installing any replacement breaker.
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