Federal Pacific NM631175R NM631175 - 175A 3 Pole Molded Case Circuit Breaker
- 175A
- 3 Pole
- Bolt-On
Quantity
Federal Pacific NM631175 - 175A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
Restoring older electrical infrastructure requires exact-fit components like this 175A, 3-pole molded case breaker. Designed specifically for commercial and industrial applications, it seamlessly integrates into existing Federal Pacific switchgear and panelboards. Finding compatible hardware for discontinued systems can be challenging, but this unit mounts into N-frame spaces without modifications. It serves as a reliable replacement to keep facilities running safely.Specifications
| Brand | Federal Pacific |
|---|---|
| Part Number | NM631175R-R |
| Series | NM |
| Amperage | 175A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 42kA @ 240VAC, 30kA @ 480VAC, 22kA @ 600VAC |
| Frame Type | NM |
|---|---|
| Terminal Type | Lugs |
| For Use With | Federal Pacific Switchgear / Panelboards |
| Wire Gauge | 1/0 AWG-600 kcmil |
| Max Wire | 600 kcmil |
| Min Wire | 1/0 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, Alarm Switch |
|---|---|
| Accessories | Lugs |
| Standards | UL 489, NEMA AB-1 |
| Approval | UL |
| Temp Rating | 40C |
| Construction Features | Interchangeable Trip Unit |
Product FAQs
6 answersWhat type of equipment is the NM631175R designed to fit?
This NM frame molded case circuit breaker is designed for bolt-on installation in legacy Federal Pacific Electric (FPE) commercial panelboards and switchgear.
How is the trip unit configured on this breaker?
It features a thermal-magnetic trip unit with fixed thermal protection for long-time overloads and an adjustable magnetic setting for instantaneous short-circuit protection.
What wire size range do the lugs on this breaker accept?
The factory lugs accommodate wire sizes from 1/0 AWG up to 600 kcmil.
What does the LI trip function code indicate on the NM631175R?
The LI designation means the breaker provides Long-Time overload protection and Instantaneous short-circuit protection, which are standard functions for thermal-magnetic trip units.
Is the Federal Pacific NM631175R still actively manufactured?
No, Federal Pacific Electric is no longer in business. The NM frame series is a legacy product line, so exact replacements must be sourced from existing surplus or legacy circuit breaker inventory.
Are there direct aftermarket replacements for the FPE NM631175R?
Because the NM frame has a specific physical footprint and bolt-on mounting configuration unique to FPE switchgear, direct drop-in replacements from modern manufacturers are generally not available without retrofitting the enclosure.
SuperClub
Join free. Get 500 SuperPoints.
Earn points on eligible purchases and redeem them at checkout.
100 SuperPoints = $1 off.
Warranties
Add an extra year of protection
60-Day Warranty
Your purchase includes 60 days of SuperBreakers warranty coverage.
Add a 1-year warranty extension in your cart.
Get a Quote
Don’t see what you’re looking for?
We source obsolete and hard-to-find parts every day.
Shipping
Free Shipping Policy
Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.
Same Day Shipping
We strive to ship out your items the same day the order is placed. In rare circumstances SuperBreakers may reserve up to 5 business days to consolidate orders for complete shipment.
Expedited Shipments
Orders being shipped via Next Day Air, 2 Day Shipping or 3 Day Shipping must be received by 3 PM EST to guarantee same-day shipments. Expedited orders only ship on normal business days. Shipments will NOT be sent out on Saturdays and Sundays.
International Shipping
All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.
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