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Federal Pacific NJL631125R Molded Case Circuit Breaker
- 125A
- 3 Pole
- Bolt-On
Federal Pacific
NJL631125R
Molded Case Circuit Breaker
Brand
Federal Pacific
SKU
NJL631125R
Quantity
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Federal Pacific NJL631125R - 125A 3 Pole Molded Case Circuit Breaker
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Description
Part of the legacy N-Frame series, this 125A, three-pole MCCB provides reliable long-time and instantaneous trip functions for commercial facilities. Designed as an exact drop-in component, it mounts into older Federal Pacific switchboards and motor control centers. It serves as a seamless substitute for NJL632125 configurations, eliminating retrofit kits. Rated to handle 30kA fault currents at 480VAC, the thermal-magnetic design features an integrated rotary handle mechanism.Specifications
| Brand | Federal Pacific |
|---|---|
| Part Number | NJL631125R |
| Series | NJL |
| Amperage | 125A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 42kA @ 240VAC, 30kA @ 480VAC, 22kA @ 600VAC |
| Frame Type | NJL |
|---|---|
| Terminal Type | Lugs |
| For Use With | Federal Pacific Switchboards, Panelboards, Motor Control Centers |
| 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, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release |
|---|---|
| Accessories | Rotary Handle |
| Standards | UL 489, NEMA AB 1 |
| Approval | UL |
| Temp Rating | 40C |
| Construction Features | Non-Interchangeable Trip |
Product FAQs
6 answersWhat does the "R" suffix indicate on the NJL631125R circuit breaker?
The "R" suffix indicates that this breaker features an integrated rotary handle mechanism for operation.
Can the NJL631125R be used to replace other Federal Pacific breakers?
Yes, this breaker serves as an exact drop-in substitute for legacy NJL632125 configurations without requiring aftermarket retrofit kits.
How is the NJL631125R installed into existing equipment?
This breaker utilizes a bolt-on connection type and is designed to mount directly into classic Federal Pacific N-Frame spaces within switchboards, panelboards, and motor control centers.
What wire sizes are accepted by the lugs on this 125A breaker?
The factory lugs on the NJL631125R accept conductors ranging from 6 AWG to 350 kcmil, accommodating standard wire sizing for 125-amp commercial circuits.
What type of overcurrent protection does the NJL631125R provide?
It features a thermal-magnetic trip unit with fixed long-time and instantaneous (LI) functions, providing standard overload and short-circuit protection for industrial applications.
Is this breaker part of the Federal Pacific Stab-Lok residential line?
No, the NJL631125R is a commercial-grade, bolt-on molded case circuit breaker from the N-Frame series. It is designed for industrial switchboards and motor control centers, not residential Stab-Lok load centers.
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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