Free Shipping Over $99
Federal Pacific NF631100 Molded Case Circuit Breaker
- 100A
- 3 Pole
- Bolt-On
Federal Pacific
NF631100
Molded Case Circuit Breaker
Brand
Federal Pacific
SKU
NF631100
Quantity
Shop with Confidence
Add an extra year of protection in your cart.
Federal Pacific NF631100 - 100A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Similar Items
NF631070 - 70A 3 Pole Molded Case Circuit Breaker
NF631030 - 30A 3 Pole Molded Case Circuit Breaker
25A 3 Pole Molded Case Circuit Breaker
Description
Part of the legacy N-frame lineup, the Federal Pacific NF631100 provides 100 amps of reliable thermal-magnetic protection. It is designed for 3-phase commercial and industrial electrical systems requiring long-time and instantaneous trip functions. This bolt-on MCCB installs seamlessly into Federal Pacific NF panelboards. It acts as a drop-in replacement, keeping older distribution systems operational. The breaker handles up to 600VAC and features a 25kAIC rating at 240VAC.Specifications
| Brand | Federal Pacific |
|---|---|
| Part Number | NF631100-R |
| Series | NF |
| Amperage | 100A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 25kA @ 240VAC, 18kA @ 480VAC, 14kA @ 600VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Federal Pacific NF Panelboards |
| Wire Gauge | 14-1/0 AWG |
| Max Wire | 1/0 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Undervoltage Release, Auxiliary Switch, Bell Alarm, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5.1, NEMA AB-1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40°C |
| Construction Features | Non-Interchangeable Trip |
Product FAQs
7 answersCan I use the NF631100 in a standard Federal Pacific residential load center?
No. This is an N-frame molded case circuit breaker designed specifically for commercial and industrial Federal Pacific NF panelboards. It will not fit in residential Stab-Lok load centers.
Does the NF631100 require special mounting hardware?
Because it is a bolt-on breaker, it must be mechanically fastened to the panelboard busbars. Ensure you have the correct busbar bolts and hardware for an NF series panel, as they are not typically included with the breaker itself.
Why is the Federal Pacific NF631100 considered a legacy breaker?
Federal Pacific Electric (FPE) is no longer in business, meaning original breakers like the NF631100 are no longer manufactured. They are sourced to keep existing commercial NF panelboards operational without the need for a complete panel retrofit.
Is the NF631100 affected by the safety concerns associated with FPE Stab-Lok breakers?
The widely documented safety issues regarding Federal Pacific primarily involve their residential Stab-Lok plug-on breakers. The NF631100 is a commercial-grade, bolt-on molded case circuit breaker and is built to different industrial standards.
How should the wiring be terminated on the NF631100?
The standard lugs accept 14 AWG to 1/0 AWG wire. When terminating, verify whether the installed lugs are rated for copper only or dual-rated for copper and aluminum (AL-CU), and always torque the connections to the manufacturer specifications printed on the breaker faceplate.
Can the trip settings on the NF631100 be adjusted in the field?
No. This breaker features a fixed thermal-magnetic trip unit. Both the long-time (overload) and instantaneous (short circuit) trip functions are factory set and cannot be adjusted by the installer.
Can the NF631100 be used on a 480V or 600V system?
Yes. The NF631100 is rated for use on AC systems up to 600V. However, the interrupting capacity (AIC) decreases at higher voltages. It provides 25kA at 240VAC, 18kA at 480VAC, and 14kA at 600VAC, so you must verify the available fault current at your specific system voltage.
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.