Federal Pacific NEF425090 Molded Case Circuit Breaker
- 90A
- 2 Pole
- Bolt-On
Federal Pacific
NEF425090
Molded Case Circuit Breaker
Brand
Federal Pacific
SKU
NEF425090
Quantity
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Federal Pacific NEF425090 - 90A 2 Pole Molded Case Circuit Breaker
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Description
A drop-in replacement for aging commercial and industrial systems, the Federal Pacific NEF425090 restores reliable power distribution without the need for panel upgrades. This 90-amp, two-pole molded case circuit breaker is engineered specifically for legacy Federal Pacific panelboards. Mounting securely via a bolt-on connection, it accepts 4-1/0 AWG wire and features non-interchangeable thermal-magnetic trip units.Specifications
| Brand | Federal Pacific |
|---|---|
| Part Number | NEF425090 |
| Series | NEF |
| Amperage | 90A |
| 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, Auxiliary Switch, Undervoltage Release, Bell Alarm |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2, UL 489, NEMA AB 1 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Non-Interchangeable Trip, Reverse Feed, Vibration Tested, HACR Rated |
Product FAQs
6 answersWhich panelboards are compatible with the NEF425090 circuit breaker?
This breaker is designed for installation in legacy Federal Pacific NEF series panelboards and compatible CDP distribution panels that accept N-frame bolt-on breakers.
What is the acceptable wire gauge range for the NEF425090 lugs?
The load side lugs are designed to accept conductors ranging from 4 AWG up to 1/0 AWG. Ensure proper torque specifications are followed during installation.
Can the NEF425090 be used in DC voltage applications?
Yes, this thermal magnetic breaker is rated for DC applications up to 250VDC, providing an interrupting capacity of 10 kAIC at that voltage.
How does the NEF425090 mount into the panelboard?
This is a bolt-on circuit breaker that secures directly to the panel bus. Depending on your specific Federal Pacific distribution panel, a separate N-frame mounting hardware kit may be required for installation.
Is the NEF425090 part of the residential Stab-Lok series?
No, the NEF425090 is a commercial-grade, molded case N-frame circuit breaker with a bolt-on connection. It is not part of the residential Federal Pacific Stab-Lok plug-on series.
How does the interrupting rating change depending on the system voltage?
The NEF425090 provides 14 kAIC of protection on 480VAC systems. If installed on a 240VAC system, the interrupting capacity increases to 18 kAIC.
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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.