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Federal Pacific NEF421030 Molded Case Circuit Breaker
- 30A
- 2 Pole
- Bolt-On
Federal Pacific
NEF421030
Molded Case Circuit Breaker
Brand
Federal Pacific
SKU
NEF421030
Quantity
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Federal Pacific NEF421030 - 30A 2 Pole Molded Case Circuit Breaker
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Description
Part of the legacy N-Frame series, this 30A molded case circuit breaker provides reliable thermal-magnetic protection for commercial and industrial electrical systems. It is engineered as an exact replacement component that mounts into Federal Pacific NEF and CDP panelboards without requiring adapters. Rated to handle 18kAIC at 240VAC and 14kAIC at 480VAC, the unit features non-interchangeable trips and is fully vibration tested for demanding environments.Specifications
| Brand | Federal Pacific |
|---|---|
| Part Number | NEF421030-R |
| Series | NEF |
| Amperage | 30A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 18kA @ 240VAC, 14kA @ 480VAC, 10kA @ 250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Federal Pacific NEF Panelboards, CDP 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 Thermal, Fixed Magnetic |
| 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, Vibration Tested |
Product FAQs
6 answersWhich panelboards accept the Federal Pacific NEF421030 breaker?
This N-Frame breaker is engineered as an exact fit for legacy Federal Pacific NEF panelboards and CDP panelboards. It mounts directly to the bus without requiring aftermarket adapters.
How is the NEF421030 secured inside the panelboard?
It uses a bolt-on connection type. This provides a secure, vibration-resistant mechanical and electrical connection to the panel bus, which is critical for heavy commercial and industrial environments.
What wire sizes can be used with the terminals on this breaker?
The standard lugs accommodate conductors ranging from 14 AWG up to 2 AWG. Always verify your specific wire material and temperature ratings against local electrical codes during installation.
Are Federal Pacific NEF421030 breakers still in active production?
Federal Pacific Electric is no longer in business, making the original NEF series obsolete. Facilities maintaining existing NEF and CDP distribution equipment must rely on legacy stock to replace faulty components.
How does the thermal-magnetic trip unit in the NEF421030 operate?
The breaker uses fixed long-time and instantaneous (LI) trip functions. The thermal element heats up and trips during sustained overloads, while the magnetic element responds immediately to high-fault short circuits.
Is the NEF421030 suitable for direct current applications?
Yes. While primarily used in 240V and 480V alternating current systems, this breaker is also rated for 250V DC applications, providing a 10 kAIC interrupting capacity for DC 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.