Federal Pacific NEF425100 Molded Case Circuit Breaker
- 100A
- 2 Pole
- Bolt-On
Federal Pacific
NEF425100
Molded Case Circuit Breaker
Brand
Federal Pacific
SKU
NEF425100
Quantity
Shop with Confidence
Add an extra year of protection in your cart.
Federal Pacific NEF425100 - 100A 2 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Similar Items
15A 2 Pole Molded Case Circuit Breaker
100A 3 Pole Molded Case Circuit Breaker
100A 3 Pole Molded Case Circuit Breaker
Description
Part of the legacy N-frame series, the Federal Pacific NEF425100 provides a seamless fit for discontinued commercial panelboards. This 100-amp, two-pole molded case circuit breaker eliminates the need for costly system overhauls by offering an exact match for aging electrical infrastructure. Installing via a dependable bolt-on connection, it utilizes standard 4-1/0 AWG wire lugs.Specifications
| Brand | Federal Pacific |
|---|---|
| Series | NEF |
| Amperage | 100A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 18kA @ 240VAC, 14kA @ 480VAC, 10kA @ 250VDC |
| Frame Type | NEF |
|---|---|
| Terminal Type | Lugs |
| For Use With | Federal Pacific Panelboards |
| Wire Gauge | 4-1/0 AWG |
| Max Wire | 1/0 AWG |
| Min Wire | 4 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Undervoltage Release, Auxiliary Switch, Bell Alarm |
|---|---|
| Accessories | Lugs |
| Standards | CSA C22.2 No. 5.1, NEMA AB 1, UL 489, UL 486B, UL 1087 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Non-Interchangeable Trip, Reverse Feed, Vibration Tested |
Product FAQs
6 answersWhat panelboards accept the Federal Pacific NEF425100 circuit breaker?
This N-frame breaker is designed for legacy Federal Pacific (FPE) commercial and industrial panelboards, such as the CDP series, that are configured for bolt-on NEF frame breakers.
Is the NEF425100 compatible with residential FPE Stab-Lok load centers?
No. The NEF425100 is a commercial bolt-on molded case circuit breaker. It will not fit residential Stab-Lok load centers, which require plug-on NA, NB, or NC series breakers.
Can the NEF425100 be used in DC power systems?
Yes, this breaker is rated for use in DC systems up to 250VDC, providing an interrupting capacity of 10kAIC at that voltage.
How is the NEF425100 installed into the panelboard bus?
It utilizes a bolt-on connection, meaning it must be mechanically fastened directly to the panelboard bus using appropriate mounting hardware or bus connection kits.
What wire gauge range is supported by the terminals on the NEF425100?
The standard lugs on this breaker accommodate wire sizes ranging from 4 AWG to 1/0 AWG.
How does the thermal-magnetic trip unit on the NEF425100 operate?
The trip unit provides fixed thermal protection for long-time overload conditions and fixed magnetic protection for instantaneous short-circuit response. Both functions are non-adjustable on this specific frame.
SuperClub
Join free. Get 500 SuperPoints.
Earn points on eligible purchases and redeem them at checkout.
100 SuperPoints = $1 off.
Warranties
Add an extra year of protection
60-Day Warranty
Your purchase includes 60 days of SuperBreakers warranty coverage.
Add a 1-year warranty extension in your cart.
Get a Quote
Don’t see what you’re looking for?
We source obsolete and hard-to-find parts every day.
Shipping
Free Shipping Policy
Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.
Same Day Shipping
We strive to ship out your items the same day the order is placed. In rare circumstances SuperBreakers may reserve up to 5 business days to consolidate orders for complete shipment.
Expedited Shipments
Orders being shipped via Next Day Air, 2 Day Shipping or 3 Day Shipping must be received by 3 PM EST to guarantee same-day shipments. Expedited orders only ship on normal business days. Shipments will NOT be sent out on Saturdays and Sundays.
International Shipping
All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.
Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 6 reviews.
Search
Rating
6 reviews
- SCStephen C.Verified BuyerReviewingFederal Pacific NEF431030 - 30A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars8/21/26Fpe 3 pole 30 amp breaker.
I ordered the breaker on Thursday and it was at my house for Saturday morning. Breaker is in pristine condition. A real bail out. Thank you.
- MRMichael R.Verified BuyerReviewingFederal Pacific NEF431040 - 40A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars8/4/25Warehouse Air Compressor
Worked like a charm.
Thank you.
- DPDiana P.ReviewingFederal Pacific NEF433020 3 Pole Circuit BreakerI recommend this productRated 5 out of 5 stars3/3/21Satisfied
Service was GREAT!!
- DJDavid J.ReviewingFederal Pacific / American NEF431100 - 100A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars1/13/21This worked out great.
This worked out great.
- MWMark W.ReviewingFederal Pacific NEF421050 - 50A 2 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars11/17/19Great service & pricing
Superbreakers did a great job for us. We called and asked if the breakers were actually in their possession. Withing 30 minutes they called us back (which is rare these days), and we got our breakers the next morning.