Federal Pacific NM631800 Molded Case Circuit Breaker
- 800A
- 3 Pole
- Bolt-On
Quantity
Federal Pacific NM631800 - 800A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
Built for demanding electrical systems, this 800A molded case circuit breaker utilizes an interchangeable trip unit to protect commercial circuits. The three-pole device offers long-time and instantaneous protection functions. Engineered for seamless integration, it installs into older Federal Pacific switchgear and panelboards. This eliminates the need for complex retrofits when maintaining aging infrastructure.Specifications
| Brand | Federal Pacific |
|---|---|
| Part Number | NM631800-R |
| Series | NM |
| Amperage | 800A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 42kA @ 240VAC, 30kA @ 480VAC, 22kA @ 600VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Federal Pacific Switchgear / Panelboards |
| Wire Gauge | (3) 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, Auxiliary Switch, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Load Side Lugs |
| Standards | NEMA AB-1, UL 489 |
| Approval | UL |
| Temp Rating | 40C |
| Construction Features | Interchangeable Trip Unit |
Product FAQs
5 answersWhat equipment is the Federal Pacific NM631800 designed to fit?
This N-frame molded case circuit breaker is designed for use in legacy Federal Pacific Electric (FPE) switchgear and panelboards.
What size wire conductors do the lugs on the NM631800 accept?
The load side lug terminals are designed to accept three conductors per phase, with a wire range of 250 kcmil to 500 kcmil.
How is the trip unit configured on this breaker?
It features a thermal-magnetic trip unit with a fixed thermal element for overload protection and an adjustable magnetic element for short-circuit protection.
Is there an alternate catalog number for this 800A Federal Pacific breaker?
Yes, the NM631800 is often cross-referenced or listed under the alternate catalog number NM632800 for the exact same 800A, 3-pole N-frame breaker.
Are new Federal Pacific NM631800 breakers still being manufactured?
Federal Pacific Electric (FPE) is no longer in business, making this a legacy component. Replacements are typically used to maintain existing FPE switchgear and panelboards rather than for new installations.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 1 review.
- JGJoseph G.ReviewingFederal Pacific NM031500 Trip UnitI recommend this productRated 5 out of 5 stars2/1/18The best
Just what I expected