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Federal Pacific NEF433100 Molded Case Circuit Breaker
- 100A
- 3 Pole
- Bolt-On
Federal Pacific
NEF433100
Molded Case Circuit Breaker
Brand
Federal Pacific
SKU
NEF433100
Quantity
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Federal Pacific NEF433100 - 100A 3 Pole Molded Case Circuit Breaker
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Description
Maintaining operational continuity in older facilities, this 100A molded case circuit breaker provides essential long-time and instantaneous trip functions. Engineered for commercial and industrial applications, the 3-pole unit bolts securely into Federal Pacific NEF panelboards. It is an exact match for replacing older units and substitutes the NEF437100 model. Rated for 18kAIC at 240VAC and 14kAIC at 480VAC, it includes non-interchangeable trip units and is suitable for reverse feed setups.Specifications
| Brand | Federal Pacific |
|---|---|
| Part Number | NEF433100-R |
| Series | NEF |
| Amperage | 100A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 18kA @ 240VAC, 14kA @ 480VAC, 10kA @ 250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Federal Pacific NEF 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 | Lugs |
| 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
4 answersWhat are the alternate catalog numbers for the NEF433100?
This breaker is also known in the industry by the alternate catalog numbers NEF431100, NEF435100, and NEF437100.
Which panelboards accept the NEF433100 circuit breaker?
This bolt-on breaker is designed for installation in legacy Federal Pacific NEF series panelboards.
What wire sizes are accepted by the lugs on the NEF433100?
The factory lugs on this breaker accommodate wire gauges from 4 AWG up to 1/0 AWG.
Is the NEF433100 rated for direct current (DC) systems?
Yes, in addition to its AC ratings, this thermal-magnetic breaker is rated for up to 250VDC with a 10kA interrupting capacity.
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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.