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Federal Pacific NC0250 Miniature Circuit Breaker
- 50A
- 2 Pole
- Plug-On
Federal Pacific
NC0250
Miniature Circuit Breaker
Brand
Federal Pacific
SKU
NC0250
Quantity
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Federal Pacific NC0250 - 50A 2 Pole Miniature Circuit Breaker
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Quantity
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Federal Pacific NC0250 - 50A 2 Pole Miniature Circuit Breaker
New
Quantity
| Brand | Federal Pacific |
|---|---|
| Part Number | NC0250 |
| Series | NC |
| Amperage | 50A |
| Poles | 2 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Federal Pacific Stab-Lok Load Centers, Federal Pioneer Stab-Lok Panels |
| Wire Gauge | 14-4 AWG (Cu/Al) |
| Max Wire | 4 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Accessories | NC0250-R |
|---|---|
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Stab-Lok Design, Thin / Wafer Style (1/2 inch per pole), Color Coded Handle |
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Federal Pacific NC0250 - 50A 2 Pole Miniature Circuit Breaker
Re-Certified
Quantity
| Brand | Federal Pacific |
|---|---|
| Part Number | NC0250-R |
| Series | NC |
| Amperage | 50A |
| Poles | 2 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Federal Pacific Stab-Lok Load Centers, Federal Pioneer Stab-Lok Panels |
| Wire Gauge | 14-4 AWG (Cu/Al) |
| Max Wire | 4 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Accessories | NC0250-R |
|---|---|
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Stab-Lok Design, Thin / Wafer Style (1/2 inch per pole), Color Coded Handle |
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Description
Engineered to restore power in older residential and commercial systems, this 50A two-pole component fits classic Federal Pacific enclosures. It mounts into original Stab-Lok load centers without requiring aftermarket adapters, ensuring a precise fit. Featuring a space-saving half-inch per pole wafer design and a color-coded handle, it serves as an exact substitute for the UBIF0250N. This 10kAIC rated device maintains standard thermal-magnetic trip functions for legacy electrical panels.Specifications
| Brand | Federal Pacific |
|---|---|
| Part Number | NC0250 |
| Series | NC |
| Amperage | 50A |
| Poles | 2 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Federal Pacific Stab-Lok Load Centers, Federal Pioneer Stab-Lok Panels |
| Wire Gauge | 14-4 AWG (Cu/Al) |
| Max Wire | 4 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Accessories | NC0250-R |
|---|---|
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Stab-Lok Design, Thin / Wafer Style (1/2 inch per pole), Color Coded Handle |
Product FAQs
6 answersWhat is the difference between Federal Pacific NC and NA series breakers?
The NC series features a thin profile, measuring 1/2-inch per pole, allowing for higher density in the panel. The NA series is the thick or full-size version, measuring 1-inch per pole. The NC0250 is a 2-pole thin breaker that requires 1 inch of total panel space.
Which electrical panels accept the NC0250 circuit breaker?
This breaker is designed exclusively for Federal Pacific (FPE) Stab-Lok load centers and Federal Pioneer Stab-Lok panels. It utilizes a specialized plug-on mounting style specific to the Stab-Lok busbar design and is not compatible with panels from other manufacturers.
What is the direct aftermarket replacement for the Federal Pacific NC0250?
The Connecticut Electric UBIF0250N is a direct aftermarket replacement for the original Federal Pacific NC0250. It is designed to fit the same Stab-Lok panels and meets modern UL 489 safety standards.
Are there safety concerns with legacy Federal Pacific Stab-Lok breakers?
Yes, original Federal Pacific Electric (FPE) Stab-Lok panels and breakers have documented safety concerns regarding their ability to trip reliably during overcurrent events. Many electrical professionals recommend full panel replacement when feasible. If a panel upgrade is not immediately possible, aftermarket replacement breakers are often used to restore temporary protection.
What wire sizes are compatible with the NC0250 terminal lugs?
The lugs accept 14 AWG to 4 AWG copper or aluminum wire. Ensure proper torque specifications are followed during installation to maintain a secure connection.
What is the maximum fault current the NC0250 can safely interrupt?
The breaker features a 10kA AIC rating, meaning it can safely interrupt up to 10,000 amps of fault current at 120/240VAC before sustaining damage.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 6 reviews.
Total 5 star reviews: 6 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
6 reviews
- DBdonnie b.Verified BuyerReviewingFederal Pacific NC015 - 15A 1 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars1/27/26breaker
Had a warranty issue and account manager was AWESOME / Keizer Davids
- JNJoe N.Verified BuyerReviewingFederal Pacific NC020 - 20A 1 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars8/12/25Purchased four circuit breakers
Was happy with all the service would’ve wished the person would inform me if I would’ve spent $15 more I could’ve got free shipping. That way I could’ve ordered another 20 amp circuit breaker. And got it for free.
- PMPatrick M.ReviewingFederal Pacific NC015 - 15A 1 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars5/31/23great selection and free delivery!!!
great selection and free delivery!!!
- MPMark P.ReviewingFederal Pacific NC015 - 15A 1 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars4/27/23Quick
Provided quick turnaround 👍. Resolved my parents issue 👍
- TTTammy T.ReviewingFederal Pacific NC0240 - 40A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars3/4/22Federal Pacific breakers
I wasn't sure about ordering my particular breakers online because they don't make replica replacements but found the warranty outstanding. The follow-up call as a new customer and the speed with which my order was processed and completed was superior. The price was 1/3 what the ONE local supplier charged.