Federal Pacific NJJ232250 Molded Case Circuit Breaker
- 250A
- 3 Pole
- Bolt-On
Quantity
Federal Pacific NJJ232250 - 250A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Engineered as a drop-in replacement for legacy systems, the Federal Pacific NJJ232250 restores reliable power distribution without requiring panel modifications. This 250A, 3-pole molded case circuit breaker mounts into existing FPE distribution panels and switchboards, ensuring exact fit and function. Rated at 22kAIC at 240VAC, it features a non-interchangeable thermal-magnetic trip unit for dependable long-time and instantaneous (LI) protection. Cross-references with NJL631250.Specifications
| Brand | Federal Pacific |
|---|---|
| Part Number | NJJ232250 |
| Series | NJJ |
| Amperage | 250A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 22kA @ 240VAC, 10kA @ 250VDC |
| Frame Type | NJJ |
|---|---|
| Terminal Type | Lugs |
| For Use With | Federal Pacific Distribution Panels, Switchboards |
| Wire Gauge | 4 AWG - 600 kcmil |
| Max Wire | 600 kcmil |
| Min Wire | 4 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release |
|---|---|
| Accessories | Load Lugs |
| Standards | UL 489, NEMA AB-1 |
| Approval | UL |
| Temp Rating | 40C |
| Construction Features | Non-Interchangeable Trip |
Product FAQs
5 answersWhat equipment is the Federal Pacific NJJ232250 designed to fit?
This bolt-on molded case circuit breaker is specifically designed for installation in legacy Federal Pacific Electric (FPE) distribution panels and switchboards that utilize the N-Frame (NJJ) footprint.
How is the NJJ232250 installed in the panel?
This is a bolt-on circuit breaker that fastens directly to the busbar in compatible FPE distribution panels. It includes load-side lugs that accept wire gauges from 4 AWG up to 600 kcmil.
Does the NJJ232250 offer adjustable trip settings?
No, this thermal-magnetic breaker features fixed thermal and fixed magnetic trip elements. It provides standard long-time and instantaneous (LI) protection without field adjustability.
Is the NJJ232250 suitable for direct current (DC) circuits?
Yes, in addition to its AC ratings, this breaker is rated for 250VDC applications with a 10kA interrupting capacity, allowing it to be used for specific industrial DC loads.
Why is the Federal Pacific NJJ232250 considered a legacy breaker?
Federal Pacific Electric (FPE) ceased manufacturing operations decades ago. The NJJ232250 is sourced from remaining legacy inventory to allow facilities to maintain and service existing FPE switchboards without requiring a complete panel replacement.
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