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Federal Pacific NFJ437225 Circuit Breaker
- 225
- 3 Pole
- Bolt-On
Federal Pacific
NFJ437225
Circuit Breaker
Brand
Federal Pacific
SKU
NFJ437225
Quantity
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Federal Pacific NFJ437225 3 Pole Circuit Breaker
Re-Certified
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Federal Pacific NFJ437225 3 Pole Circuit Breaker
Re-Certified
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| Brand | Federal Pacific |
|---|---|
| Part Number | NFJ437225-R |
| Series | NFJ |
| Amperage | 225 A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 480V |
| Phase | 3 |
| AIC Rating | 18kAIC at 480V |
| Terminal Type | Lugs |
|---|---|
| For Use With | Federal Pacific Panelboards |
| Wire Gauge | 4 AWG - 300 kcmil |
| Max Wire | 300 kcmil |
| Min Wire | 4 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 |
|---|---|
| Accessories | Lugs |
| Approval | UL |
| Temp Rating | 40C |
| Construction Features | Non-Interchangeable Trip |
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Federal Pacific NFJ437225 3 Pole Circuit Breaker
New
Quantity
| Brand | Federal Pacific |
|---|---|
| Series | NFJ |
| Amperage | 225 A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 480V |
| Phase | 3 |
| AIC Rating | 18kAIC at 480V |
| Terminal Type | Lugs |
|---|---|
| For Use With | Federal Pacific Panelboards |
| Wire Gauge | 4 AWG - 300 kcmil |
| Max Wire | 300 kcmil |
| Min Wire | 4 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 |
|---|---|
| Accessories | Lugs |
| Approval | UL |
| Temp Rating | 40C |
| Construction Features | Non-Interchangeable Trip |
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Description
Federal Pacific NFJ437225 3 Pole Circuit Breaker
The Federal Pacific NFJ437225 is a 3 Pole thermal magnetic molded case circuit breaker with a current rating of 225 Amps and a voltage rating of 480V. It has an interrupting rating of 18kAIC at 480V. The NFJ437225 has a bolt-on connection type and includes long time and instantaneous trip functions.
Specifications
| Brand | Federal Pacific |
|---|---|
| Part Number | NFJ437225-R |
| Series | NFJ |
| Amperage | 225 A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 480V |
| Phase | 3 |
| AIC Rating | 18kAIC at 480V |
| Terminal Type | Lugs |
|---|---|
| For Use With | Federal Pacific Panelboards |
| Wire Gauge | 4 AWG - 300 kcmil |
| Max Wire | 300 kcmil |
| Min Wire | 4 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 |
|---|---|
| Accessories | Lugs |
| Approval | UL |
| Temp Rating | 40C |
| Construction Features | Non-Interchangeable Trip |
Product FAQs
7 answersWhat equipment is the Federal Pacific NFJ437225 designed to fit?
This N-frame breaker is engineered as a direct drop-in replacement for legacy Federal Pacific panelboards and distribution systems that accept bolt-on NFJ-series breakers.
What wire gauge range is supported by the terminals on the NFJ437225?
The standard lugs accommodate wire sizes from 4 AWG up to 300 kcmil. Ensure proper torque specifications are followed when securing the conductors.
What type of protection does the NFJ437225 trip unit provide?
It features a fixed thermal-magnetic trip unit that delivers long-time (thermal) protection against overloads and instantaneous (magnetic) protection against short circuits.
Is the Federal Pacific NFJ437225 still manufactured?
No, the NFJ437225 is an obsolete legacy circuit breaker. It is sourced to maintain and service existing Federal Pacific infrastructure without requiring a complete panelboard retrofit.
How does the NFJ437225 connect to the panelboard?
It features a standard bolt-on configuration, meaning the breaker must be bolted directly to the busbar of a compatible Federal Pacific panelboard for a secure electrical connection.
Can the trip settings on the NFJ437225 be adjusted?
No, this breaker features a fixed thermal-magnetic trip unit. The 225-amp long-time and instantaneous trip settings are factory-set and cannot be adjusted in the field.
Can the NFJ437225 be used in 600V applications?
No, the NFJ437225 is strictly rated for a maximum of 480V. For 600V systems, a different breaker such as the Federal Pacific NFJ631225 must be used to ensure safe operation.
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Reviews
Review summary
Customers rate this product 4.7 out of 5 based on 3 reviews.
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Rating
3 reviews
- ESEvan S.Verified BuyerReviewingFederal Pacific NFJ631225 - 225A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars9/11/26Review
Works great!
- RCRalph C.Verified BuyerReviewingFederal Pacific NFJ631150 - 150A 3 Pole Molded Case Circuit BreakerI recommend this productRated 4 out of 5 stars11/10/25Federal Pacific NF J631150 Breaker
Surprised they had it!
Great shape, well packaged. Fast shipping
- KPKeith P.ReviewingFederal Pacific NFJ631200 - 200A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars12/15/20Quick and easy ordering
Quick and easy ordering