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Federal Pacific NJL631350 Molded Case Circuit Breaker
- 350A
- 3 Pole
- Unit Mount
Federal Pacific
NJL631350
Molded Case Circuit Breaker
Brand
Federal Pacific
SKU
NJL631350
Quantity
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Federal Pacific NJL631350 - 350A 3 Pole Molded Case Circuit Breaker
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Description
Designed for commercial power distribution, the Federal Pacific NJL631350 is a 350A, 3-pole molded case circuit breaker. It delivers reliable thermal-magnetic overcurrent protection for industrial facilities relying on older infrastructure. This unit mount MCCB serves as a replacement component for legacy Federal Pacific panelboards and switchboards. It ensures an exact fit without requiring aftermarket adapters. The breaker features a 30kAIC rating at 480VAC and fixed thermal trips.Specifications
| Brand | Federal Pacific |
|---|---|
| Part Number | NJL631350-R |
| Series | NJL |
| Amperage | 350A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| 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 |
| Wire Gauge | 250 kcmil - 500 kcmil |
| Max Wire | 500 kcmil |
| Min Wire | 250 kcmil |
| 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
6 answersWhat equipment is the Federal Pacific NJL631350 designed to fit?
This N-Frame molded case circuit breaker is a drop-in replacement designed to bolt directly into legacy Federal Pacific switchboards and panelboards without requiring panel modifications.
What is the direct cross-reference for the Federal Pacific NJL631350?
The NJL631350 crosses directly to the NJL632350. Both part numbers share the same physical dimensions and electrical ratings for N-Frame applications.
What are the wire size requirements for the lugs on the NJL631350?
The factory-installed lugs on this 350-amp breaker accommodate wire gauges ranging from 250 kcmil to 500 kcmil. Ensure your conductors are properly sized for the load and enclosure temperature ratings.
How does the trip unit on the NJL631350 operate?
It utilizes a thermal-magnetic trip unit with Long-Time and Instantaneous (LI) protection. The thermal overload protection is fixed, while the instantaneous magnetic short-circuit protection is adjustable to coordinate with your specific system requirements.
What mounting hardware is required to install the NJL631350?
This bolt-on breaker mounts directly to the busbar. If you are installing it into a Federal Pacific CDP series panelboard, you may need an N-Frame mounting hardware kit, such as the NJL1K, to properly secure the breaker.
Is the Federal Pacific NJL631350 still manufactured?
Federal Pacific Electric (FPE) is no longer in business, making original N-Frame breakers like the NJL631350 legacy components. Exact-fit replacements are used to safely service and restore aging commercial infrastructure without requiring a complete system retrofit.
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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