Federal Pacific HJL432125 Molded Case Circuit Breaker
- 125A
- 3 Pole
- Bolt-On
Quantity
Federal Pacific HJL432125 - 125A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Engineered for commercial applications, the Federal Pacific HJL432125 is a 3-pole, 125A molded case circuit breaker providing reliable thermal-magnetic protection for aging infrastructure. This bolt-on MCCB installs into existing Federal Pacific panels and switchboards. As a true H-frame replacement, it eliminates the need for aftermarket adapters to maintain current enclosures.Specifications
| Brand | Federal Pacific |
|---|---|
| Part Number | HJL432125 |
| Series | HJL |
| Amperage | 125A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 480VAC |
| Phase | 3 |
| AIC Rating | 22kA @ 480VAC |
| Frame Type | HJL |
|---|---|
| Terminal Type | Lugs |
| For Use With | Federal Pacific Panels, Switchboards |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Adjustable Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | UL 489 |
| Approval | UL |
| Temp Rating | 40C |
| Construction Features | High Interrupting Capacity |
Product FAQs
6 answersWhat panels are compatible with the HJL432125 circuit breaker?
This bolt-on molded case circuit breaker is designed specifically for legacy Federal Pacific panels and commercial switchboards that accommodate H-frame breakers.
How is the HJL432125 installed into an electrical panel?
It utilizes a bolt-on connection type. The breaker must be mechanically bolted directly to the panel busbars, ensuring a secure and reliable connection for 3-phase commercial applications.
How does the thermal-magnetic trip unit operate on this breaker?
The HJL432125 features an LI (Long-Time and Instantaneous) trip function. The fixed thermal element protects against sustained overloads, while the adjustable magnetic element provides instantaneous tripping to clear short circuits safely.
Why is the HJL432125 considered a legacy component?
Federal Pacific Electric is no longer manufacturing new equipment. This HJL frame breaker is sourced as a direct replacement to maintain existing FPE switchboards, eliminating the need for aftermarket adapters or complete panel upgrades.
What does the 22kAIC rating signify for the HJL432125?
The 22kAIC rating indicates the maximum fault current the breaker can safely interrupt at 480VAC. Electricians must verify that the available short-circuit current at the panel does not exceed 22,000 amps to ensure proper system protection.
What type of wire connections does this breaker use?
This breaker uses standard lug terminals for the wire connections. Electricians should verify the wire gauge compatibility and torque specifications based on the original Federal Pacific documentation prior to installation.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 1 review.
- KLKari L.Verified BuyerReviewingSquare D HJL36040 - 40A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars4/9/26Great Customer Service
Working with Superbreakers the team is so helpful. They answer the phone and are very accommodating. We had an issue with the refurbished breaker not working out and they helped get a new one out right away.