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Federal Pacific NBGF25 GFCI Miniature Circuit Breaker
- 25A
- 1 Pole
- Bolt-On
Federal Pacific
NBGF25
GFCI Miniature Circuit Breaker
Brand
Federal Pacific
SKU
NBGF25
Quantity
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Federal Pacific NBGF25 - 25A GFCI Miniature Circuit Breaker
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Description
Engineered for commercial applications, this 25A single-pole GFCI breaker provides essential 5mA personnel protection for wet or damp locations. It installs into legacy Federal Pacific NB and NBLP bolt-on panelboards without requiring aftermarket adapters. Meeting NEC requirements for ground fault safety, this thermal-magnetic unit features a 10kAIC rating at 120VAC. For modern equivalents, the UBIF025N serves as a verified substitute for maintaining these older electrical systems.Specifications
| Brand | Federal Pacific |
|---|---|
| Part Number | NBGF25 |
| Series | NB |
| Amperage | 25A |
| Poles | 1 |
| Mounting Style | Bolt-On |
| Voltage | 120VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120VAC |
| Frame Type | NB |
|---|---|
| Terminal Type | Lugs |
| For Use With | Federal Pacific NB Panelboards, NBLP Panelboards |
| Wire Gauge | 14-2 AWG (Al/Cu) |
| Max Wire | 2 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LIG |
| Trip Function | Long-Time, Instantaneous, Ground Fault |
| Trip Adjustability | Fixed |
| Special Classification | GFCI |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
Product FAQs
4 answersWill the NBGF25 fit standard Federal Pacific Stab-Lok load centers?
No. The NBGF25 features a bolt-on connection designed specifically for commercial Federal Pacific NB and NBLP panelboards. It is not compatible with Stab-Lok residential load centers, which require plug-on style breakers.
Is there a modern replacement available for the FPE NBGF25?
Yes, the UBIF025N manufactured by Connecticut Electric serves as a verified, modern cross-reference substitute for maintaining legacy NB and NBLP electrical systems.
How is the ground fault circuit referenced during installation?
The breaker utilizes a factory-installed pigtail neutral wire. This pigtail must be routed and secured to the neutral bus bar in the panelboard to provide the return path necessary for the ground fault sensing circuitry to operate.
What level of ground fault protection does the NBGF25 offer?
The NBGF25 provides Class A personnel protection. The internal circuitry monitors the current balance between the ungrounded and grounded conductors, tripping the breaker if it detects a ground fault leakage of 5mA.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 18 reviews.
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Rating
18 reviews
- MMMike M.Verified BuyerReviewingFederal Pacific NB100 - 100A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars7/2/26100amp federal pacific breaker
So far the breaker works as expected
Just good to know some of these old federal are still available.
Thank you
- SGscott g.Verified BuyerReviewingFederal Pacific NB111020 - 20A 1 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars6/26/26Hard to find breakers
Had a project at a school built in the 1960’s and thought we were up a creek when confronted with ancient FPE commercial panels. Luckily we found what we needed with Suoerbreakers.
- BFBarry F.Verified BuyerReviewingFederal Pacific NB100 - 100A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars6/13/26Hard to find circuit breaker
Item was as described.
- WWWilliam W.Verified BuyerReviewingFederal Pacific NB100 - 100A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars3/9/26Exactly what I needed.
Awesome! Packaging and delivery were good. Bolted in and worked perfectly!!)
- GHGary H.Verified BuyerReviewingFederal Pacific NB125 - 125A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars3/3/26Federal Pacific NB125 2 Pole Circuit Breaker
Federal Pacific NB125 2 Pole Circuit Breaker
Great product and excellent price and warranty.