Federal Pacific NEF425050 Molded Case Circuit Breaker
- 50A
- 2 Pole
- Bolt-On
Federal Pacific
NEF425050
Molded Case Circuit Breaker
Brand
Federal Pacific
SKU
NEF425050
Quantity
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Federal Pacific NEF425050 - 50A 2 Pole Molded Case Circuit Breaker
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Description
Maintaining power continuity in older facilities, this 50A thermal-magnetic breaker provides essential long-time and instantaneous trip protection. It fastens securely into Federal Pacific NEF series panelboards, giving contractors a reliable drop-in solution for maintaining existing electrical infrastructure. Featuring a fixed trip mechanism and an 18kAIC rating at 240VAC, the breaker is HACR rated for HVAC equipment and approved for reverse feed installations.Specifications
| Brand | Federal Pacific |
|---|---|
| Series | NEF |
| Amperage | 50A |
| 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 NEF Panelboards |
| Wire Gauge | 14-2 AWG |
| Max Wire | 2 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Bell Alarm |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Non-Interchangeable Trip, Reverse Feed Suitable, Vibration Tested |
Product FAQs
6 answersWhat panelboards accept the NEF425050?
The NEF425050 is an exact-fit, bolt-on replacement for legacy Federal Pacific NEF series panelboards. It can also be mounted in CDP panelboards when paired with the correct twin mounting hardware kit.
Is the NEF425050 suitable for reverse feed applications?
Yes, this breaker supports reverse feed setups, allowing it to be back-fed when required by your specific distribution system design.
What is the DC interrupting rating for this breaker?
In addition to its 480VAC rating, the NEF425050 is rated for 250VDC applications, providing a 10kAIC interrupting capacity for direct current systems.
Is this breaker HACR rated?
Yes, the NEF425050 is HACR rated, meaning it is approved for use with heating, air conditioning, and refrigeration equipment.
What wire gauge range do the terminals accept?
The load-side lugs on this breaker accommodate wire sizes from 14 AWG up to 2 AWG.
How does the trip unit operate?
It utilizes a non-interchangeable, fixed thermal-magnetic trip unit. This provides standard LI (long-time and instantaneous) protection to safeguard commercial infrastructure against overloads and short circuits.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 6 reviews.
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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.