Federal Pacific HM632175 Molded Case Circuit Breaker
- 175A
- 3 Pole
- Bolt-On
Quantity
Federal Pacific HM632175 - 175A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
Operating at up to 600VAC, the HM632175 is a 3-pole, 175A molded case circuit breaker designed for commercial facilities. It utilizes a reliable thermal-magnetic mechanism to safeguard critical circuits. This legacy H-frame breaker mounts into Federal Pacific panelboards and switchgear. It provides an exact match for the discontinued NM632175, ensuring a safe replacement process. Rated to interrupt 35kA at 240V, this bolt-on MCCB includes an interchangeable trip unit and load-side lugs.Specifications
| Brand | Federal Pacific |
|---|---|
| Part Number | HM632175-R |
| Series | HM |
| Amperage | 175A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 600VAC |
| Phase | 3 |
| AIC Rating | 35kA @ 240VAC, 22kA @ 480VAC, 22kA @ 600VAC |
| Frame Type | HM |
|---|---|
| Terminal Type | Lugs |
| For Use With | Federal Pacific Switchgear / Panelboards |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Adjustable Magnetic |
| Available Options | Shunt Trip, Undervoltage Release, Auxiliary Switch |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | UL 489, NEMA AB-1 |
| Approval | UL |
| Temp Rating | 40°C |
| Construction Features | Interchangeable Trip |
Product FAQs
5 answersWhat equipment accepts the HM632175 circuit breaker?
It is designed as a direct replacement for legacy Federal Pacific industrial panelboards and switchgear that accommodate H-frame molded case circuit breakers.
How are the line and load connections configured on this breaker?
The line side bolts directly to the panel bus for a secure mechanical and electrical connection, while the load side is equipped with mechanical lugs for terminating outgoing conductors.
How does the trip unit function on the HM632175?
It features a thermal-magnetic trip unit with Long-Time and Instantaneous (LI) functions. The thermal element provides a fixed overload response, while the magnetic element is adjustable to allow for short-circuit coordination with downstream devices.
Is the Federal Pacific HM632175 still manufactured?
Federal Pacific is no longer in business, so new production of the HM632175 has ceased. Replacements are typically sourced from verified surplus or reconditioned inventory to maintain existing FPE switchgear without requiring a full panel retrofit.
Is the HM632175 part of the Federal Pacific Stab-Lok line?
No. The HM632175 is an industrial molded case circuit breaker (HM frame) and does not use the residential Stab-Lok plug-on design. Standard industrial maintenance and testing protocols should still be followed for all legacy switchgear components.
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