Federal Pacific NEF431090R NEF431090 - 90A 3 Pole Molded Case Circuit Breaker
- 90A
- 3 Pole
- Bolt-On
Federal Pacific
NEF431090R
NEF431090 - 90A 3 Pole Molded Case Circuit Breaker
Brand
Federal Pacific
SKU
NEF431090R
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Federal Pacific NEF431090 - 90A 3 Pole Molded Case Circuit Breaker
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Description
Built to maintain legacy industrial systems, this 90-amp thermal-magnetic breaker offers fixed trip settings for consistent performance. It supports three-phase applications requiring up to 480VAC or 250VDC. The device fastens securely into Federal Pacific NEF and CDP panelboards, offering a straightforward solution for facility maintenance. It acts as an exact substitute for the standard NEF431090 configuration. With an 18kAIC rating at 240V, it meets rigorous commercial demands.Specifications
| Brand | Federal Pacific |
|---|---|
| Part Number | NEF431090R-R |
| Series | NEF |
| Amperage | 90A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 18kA @ 240VAC, 14kA @ 480VAC, 10kA @ 250VDC |
| Frame Type | NEF |
|---|---|
| Terminal Type | Lugs |
| For Use With | Federal Pacific NEF Panelboards, CDP 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 |
Product FAQs
6 answersWhat panelboards are compatible with the Federal Pacific NEF431090 circuit breaker?
The NEF431090 is designed as a direct bolt-on fit for legacy Federal Pacific NEF and CDP commercial panelboards. It mounts using standard N-frame hardware kits.
What hardware is required to mount the NEF431090 in a CDP panelboard?
Installing this N-frame breaker into a Federal Pacific CDP panelboard typically requires an NEF1K or equivalent twin mounting hardware strap kit, which provides the necessary bus connections.
What wire sizes do the load side lugs on the NEF431090 accept?
The factory load side lugs on this 90A breaker are designed to accept 4 AWG through 1/0 AWG conductors. Always verify that the wire insulation and material meet local electrical codes for your specific application.
Can the NEF431090 be used in direct current applications?
Yes, this breaker is rated for up to 250 VDC with an interrupting capacity of 10kA, making it suitable for specific industrial DC control circuits and systems.
Does the NEF431090 feature an adjustable trip unit?
No, this breaker features a non-interchangeable thermal magnetic trip unit with fixed long-time and instantaneous trip functions.
Is the NEF431090 part of the Federal Pacific Stab-Lok series?
No. The NEF431090 is a commercial grade, bolt-on molded case circuit breaker used in heavy duty CDP panelboards. It is completely distinct from the residential Stab-Lok plug-on breakers.
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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.