Federal Pacific HFJ634250 Molded Case Circuit Breaker
- 250A
- 3 Pole
- Bolt-On
Federal Pacific
HFJ634250
Molded Case Circuit Breaker
Brand
Federal Pacific
SKU
HFJ634250
Quantity
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Federal Pacific HFJ634250 - 250A 3 Pole Molded Case Circuit Breaker
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Quantity
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Description
Operating at 250 amps, the Federal Pacific HFJ634250 is a 3-pole molded case circuit breaker. It supports commercial facilities utilizing legacy power infrastructure. The bolt-on design integrates into Federal Pacific panelboards and switchboards. It acts as a direct substitute for NFJ634250 and UBIHFJ3250 models, eliminating the need for adapters. Featuring a high interrupting capacity of 65kAIC at 240VAC, this thermal-magnetic breaker provides dependable LI protection.Specifications
| Brand | Federal Pacific |
|---|---|
| Part Number | HFJ634250 |
| Series | HFJ |
| Amperage | 250A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 22kA @ 480VAC, 18kA @ 600VAC |
| Frame Type | HFJ |
|---|---|
| Terminal Type | Lugs |
| For Use With | Federal Pacific Panelboards and Switchboards |
| Wire Gauge | 4 AWG - 350 kcmil |
| Max Wire | 350 kcmil |
| Min Wire | 4 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Load Side Lugs |
| Standards | UL 489, NEMA AB-1 |
| Approval | UL |
| Temp Rating | 40C |
| Construction Features | High Interrupting Capacity, Non-Interchangeable Trip |
Product FAQs
5 answersWhat equipment is compatible with the HFJ634250 circuit breaker?
This bolt-on breaker is designed for installation in legacy Federal Pacific panelboards and switchboards configured for H-frame molded case circuit breakers.
What conductor sizes are supported by the HFJ634250 lugs?
The included terminal lugs accept wire gauges from 4 AWG up to 350 kcmil. Installers must verify the conductor material and apply the correct torque as specified on the breaker faceplate.
How does the LI trip function operate on this FPE breaker?
The LI designation refers to its thermal-magnetic trip unit. It provides Long-Time delay for standard overload protection and an Instantaneous trip response to clear severe short circuits.
Can this breaker replace older FPE 250A H-frame models?
Yes, the HFJ634250 is a direct bolt-on replacement for legacy 250A, 3-pole Federal Pacific H-frame breakers, provided the existing panel requires a 22kAIC rating at 480VAC or lower.
What precautions are necessary when installing this legacy MCCB?
Because this is a bolt-on unit for older Federal Pacific switchboards, electricians must ensure the panel busbars are de-energized, clean, and free of pitting before bolting the breaker in place to guarantee a secure connection.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 1 review.
Total 5 star reviews: 1 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
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Rating
1 review
- JMJimmy M.Verified BuyerReviewingFederal Pacific HFJ631225 - 225A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars7/9/26FPE HFJ631225
Super Breakers always comes through for me. Had a customer who’s sub breaker feeding the office went out and Rick with Super Breakers was very helpful finding the exact replacement.
I recommend them to anyone.