Federal Pacific NM631600 Molded Case Circuit Breaker
- 600A
- 3 Pole
- Bolt-On
Federal Pacific
NM631600
Molded Case Circuit Breaker
Brand
Federal Pacific
SKU
NM631600
Quantity
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Federal Pacific NM631600 - 600A 3 Pole Molded Case Circuit Breaker
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600A 3 Pole Molded Case Circuit Breaker
600A 3 Pole Molded Case Circuit Breaker
Description
Engineered for commercial and industrial applications, the Federal Pacific NM631600 provides robust overcurrent protection for legacy electrical systems. This 3-pole, 600A molded case circuit breaker features a thermal-magnetic trip unit with fixed thermal and adjustable magnetic settings. It mounts into classic Federal Pacific N-Frame panelboards and switchgear, serving as an exact drop-in replacement to keep existing infrastructure operational. Rated for 30kAIC at 480VAC and 42kAIC at 240VAC.Specifications
| Brand | Federal Pacific |
|---|---|
| Part Number | NM631600-R |
| Series | NM |
| Amperage | 600A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 42kA @ 240VAC, 30kA @ 480VAC, 14kA @ 600VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Federal Pacific Switchgear / Panelboards |
| Wire Gauge | (2) 3/0 AWG - 500 kcmil |
| Max Wire | 500 kcmil |
| Min Wire | 3/0 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Adjustable Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release |
|---|---|
| Accessories | Lugs |
| Standards | UL 489, NEMA AB-1 |
| Approval | UL |
| Temp Rating | 40C |
| Construction Features | Interchangeable Trip Unit |
Product FAQs
5 answersWhat panelboards and switchgear is the NM631600 compatible with?
This N-Frame breaker is engineered as a direct replacement for legacy Federal Pacific distribution panelboards and commercial switchgear designed to accept bolt-on NM series breakers.
How many conductors do the load side lugs accept per phase?
The load side lugs are dual-barrel, accepting two conductors per phase. They accommodate wire sizes ranging from 3/0 AWG up to 500 kcmil.
Are the trip settings adjustable on this specific breaker?
The interchangeable thermal-magnetic trip unit features fixed thermal protection for long-time overloads and an adjustable magnetic setting. The magnetic instantaneous pickup can be dialed in based on the specific short-circuit protection requirements of your load.
Can this breaker be used to replace existing Federal Pacific NM frame breakers?
The NM631600 is a direct, drop-in replacement for equivalent legacy FPE N-Frame breakers. It provides an exact physical and electrical match to maintain existing Federal Pacific switchboards without requiring a full panel retrofit.
Can the trip unit be swapped if load requirements change?
Yes, this model features an interchangeable trip unit. The LI trip block can be removed and replaced with another compatible N-Frame rating without having to replace the entire breaker frame.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 1 review.
Total 5 star reviews: 1 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
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1 review
- JGJoseph G.ReviewingFederal Pacific NM031500 Trip UnitI recommend this productRated 5 out of 5 stars2/1/18The best
Just what I expected