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Federal Pacific NF631025 Molded Case Circuit Breaker
- 25A
- 3 Pole
- Bolt-On
Federal Pacific
NF631025
Molded Case Circuit Breaker
Brand
Federal Pacific
SKU
NF631025
Quantity
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Federal Pacific NF631025 - 25A 3 Pole Molded Case Circuit Breaker
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Description
Maintaining older electrical systems demands precise replacement parts, and this 25-amp thermal-magnetic breaker meets those requirements. Designed specifically for Federal Pacific NF panelboards, the bolt-on configuration ensures a secure connection for commercial and industrial loads. Delivering 25kA interrupting capacity at 240V and 14kA at 600V, it provides essential LI protection. This legacy component eliminates the need for retrofit kits, though UBIF225N serves as an alternative.Specifications
| Brand | Federal Pacific |
|---|---|
| Series | NF |
| Amperage | 25A |
| 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 |
| Accessories | Load Side Lugs Included |
|---|---|
| Standards | CSA C22.2 No. 5.1, NEMA AB-1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40°C |
Product FAQs
5 answersWhich panelboards accept the NF631025 circuit breaker?
This N-frame breaker is engineered specifically for bolt-on installation in legacy Federal Pacific NF panelboards. It is a commercial molded case circuit breaker and is not compatible with Federal Pacific Stab-Lok residential load centers.
How does the NF631025 connect to the panelboard bus?
It utilizes a bolt-on connection. This provides a secure, mechanically fastened contact to the busbar, which is standard for commercial N-frame panelboards and prevents arcing from loose connections.
How does the interrupting capacity of the NF631025 scale with system voltage?
The short-circuit interrupting rating decreases as the system voltage increases. It is rated for 25 kAIC at 240V AC, 18 kAIC at 480V AC, and 14 kAIC at 600V AC.
What wire sizes are supported by the load terminals on this 25A breaker?
The integrated lugs accept conductor sizes from 14 AWG up to 1/0 AWG, allowing for significant up-sizing of wire to account for voltage drop over long conduit runs.
Are the trip settings adjustable on the NF631025?
No, this breaker features a fixed thermal-magnetic trip unit. Both the long-time overload and instantaneous short-circuit trip points are factory set and cannot be modified in the field.
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