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Federal Pacific HFJ434175 Molded Case Circuit Breaker
- 175A
- 3 Pole
- Bolt-On
Federal Pacific
HFJ434175
Molded Case Circuit Breaker
Brand
Federal Pacific
SKU
HFJ434175
Quantity
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Federal Pacific HFJ434175 - 175A 3 Pole Molded Case Circuit Breaker
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Description
Engineered for commercial facilities, the HFJ434175 is a 175-amp, three-pole molded case circuit breaker. It provides essential long-time and instantaneous trip functions for legacy Federal Pacific distribution systems. This bolt-on MCCB installs seamlessly into older FPE panelboards without requiring aftermarket adapters. It serves as the exact replacement for the discontinued NFJ434175 model. Delivering an interrupting capacity of 65kA at 240VAC, it ensures robust fault protection.Specifications
| Brand | Federal Pacific |
|---|---|
| Part Number | HFJ434175-R |
| Series | HFJ |
| Amperage | 175A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 22kA @ 480VAC |
| 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 |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release |
|---|---|
| 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
4 answersWhich panelboards are compatible with the HFJ434175 circuit breaker?
This bolt-on molded case circuit breaker is designed for direct installation into legacy Federal Pacific panelboards and switchboards. It mounts seamlessly into older FPE enclosures without the need for aftermarket adapters.
Can the HFJ434175 replace older discontinued Federal Pacific breakers?
Yes, the HFJ434175 serves as an exact replacement for the discontinued NFJ434175 model. It fits directly into the same legacy FPE distribution systems.
Are lugs included with the HFJ434175, and what wire sizes do they accept?
Yes, the breaker comes equipped with factory lugs that accommodate wire gauges from 4 AWG up to 350 kcmil. Installers should verify the required torque values printed on the breaker faceplate before terminating conductors.
How does the trip unit on the HFJ434175 operate during a fault?
The breaker utilizes a thermal magnetic trip unit with fixed thermal and fixed magnetic settings. It delivers standard LI protection, providing a long time delay for standard overloads and an instantaneous trip response to clear severe short circuits.
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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.