Federal Pacific HJL432300 Molded Case Circuit Breaker
- 300A
- 3 Pole
- Bolt-On
Quantity
Federal Pacific HJL432300 - 300A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Maintaining older electrical systems requires precise components. The Federal Pacific HJL432300 is a 3-pole, 300A MCCB offering robust protection for commercial environments. Engineered to fit Federal Pacific panels and switchboards perfectly, it utilizes the original bolt-on mounting style. This provides a straightforward replacement path to avoid upgrading boards. With a 22kAIC rating at 480VAC, this legacy breaker handles fault currents using fixed thermal and adjustable magnetic trips.Specifications
| Brand | Federal Pacific |
|---|---|
| Part Number | HJL432300 |
| Series | HJL |
| Amperage | 300A |
| 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
5 answersWhat type of enclosures or panels are compatible with the HJL432300?
This legacy MCCB is designed for use in Federal Pacific panels and switchboards that accept H-frame bolt-on circuit breakers.
How do you adjust the trip settings on the HJL432300?
This breaker features a thermal-magnetic trip unit with fixed thermal protection for overloads and an adjustable magnetic setting for instantaneous short-circuit protection.
What does the LI trip function code mean on this Federal Pacific breaker?
The LI designation stands for Long-Time and Instantaneous trip functions. Long-Time handles gradual overloads, while the Instantaneous function provides immediate tripping during severe short circuits.
Does this breaker mount to standard DIN rails?
No, the HJL432300 requires a bolt-on connection and is not compatible with DIN rail mounting systems. It must be bolted directly to the busbar in compatible Federal Pacific switchboards.
Can I use this HJL frame breaker to replace an FPE Stab-Lok breaker?
No. The HJL432300 is a commercial molded case circuit breaker from the H-frame family. It will not fit in residential Stab-Lok load centers.
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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.