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Federal Pacific NJL631125 Molded Case Circuit Breaker
- 125A
- 3 Pole
- Unit Mount
Federal Pacific
NJL631125
Molded Case Circuit Breaker
Brand
Federal Pacific
SKU
NJL631125
Quantity
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Federal Pacific NJL631125 - 125A 3 Pole Molded Case Circuit Breaker
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Description
Maintaining classic industrial infrastructure requires exact-fit components like this 125-amp molded case circuit breaker. It delivers essential long-time and instantaneous overcurrent safety for three-phase commercial applications. Engineered specifically for Federal Pacific enclosures, the unit-mount configuration slides into existing N-Frame spaces. This eliminates the downtime and expense associated with retrofitting entire electrical panels.Specifications
| Brand | Federal Pacific |
|---|---|
| Part Number | NJL631125-R |
| Series | NJL |
| Amperage | 125A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 42kA @ 240VAC, 30kA @ 480VAC, 22kA @ 600VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Federal Pacific Switchboards, Panelboards |
| Wire Gauge | 6 AWG - 350 kcmil |
| Max Wire | 350 kcmil |
| Min Wire | 6 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Adjustable Magnetic |
| Available Options | Shunt Trip, Undervoltage Release, Auxiliary Switch |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | UL 489, NEMA AB 1 |
| Approval | UL |
| Temp Rating | 40C |
| Construction Features | Non-Interchangeable Trip |
Product FAQs
4 answersWhat type of enclosures accept the Federal Pacific NJL631125?
This N-Frame breaker is designed as an exact drop-in component for legacy Federal Pacific switchboards and panelboards. It mounts directly into existing spaces, allowing you to maintain older infrastructure without the downtime or expense of installing retrofit kits.
How does the adjustable magnetic trip function work on the NJL631125?
This breaker features an LI thermal-magnetic trip unit with a fixed thermal (Long-Time) setting and an adjustable magnetic (Instantaneous) setting. The adjustable magnetic dial allows licensed electricians to tune the breaker's short-circuit response threshold to properly coordinate with other protective devices in the electrical system.
Is this commercial breaker affected by the Federal Pacific Stab-Lok safety concerns?
No. The NJL631125 is a heavy-duty, commercial-grade N-Frame molded case circuit breaker that bolts securely into switchboards. It is completely different from the residential Stab-Lok plug-on breakers that are known for safety and reliability issues.
Does installing this breaker require a retrofit kit?
No. Because it is an original-style N-Frame molded case circuit breaker, it features a standard bolt-on connection that installs directly into compatible Federal Pacific enclosures without requiring aftermarket retrofit kits or modifications.
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Reviews
Review summary
Customers rate this product 3.0 out of 5 based on 1 review.
Total 5 star reviews: 0 Total 4 star reviews: 0 Total 3 star reviews: 1 Total 2 star reviews: 0 Total 1 star reviews: 0
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Rating
1 review
- MNMichael N.Verified BuyerReviewingFederal Pacific NJL631300 - 300A 3 Pole Molded Case Circuit BreakerRated 3 out of 5 stars8/7/25Quick shipping 👍
Came missing lugs..
Wanna buy mine ? Tripping prematurely....
Michael 201-578-0628