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Federal Pacific HEF631100 Molded Case Circuit Breaker
- 100A
- 3 Pole
- Bolt-On
Federal Pacific
HEF631100
Molded Case Circuit Breaker
Brand
Federal Pacific
SKU
HEF631100
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Federal Pacific HEF631100 - 100A 3 Pole Molded Case Circuit Breaker
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Description
Built for commercial applications, the HEF631100 is a 100A, three-pole molded case circuit breaker from Federal Pacific. It features fixed thermal-magnetic trip units for standard protection. This bolt-on breaker installs into legacy Federal Pacific panelboards. It serves as an exact replacement for the discontinued NEF631100 and crosses over with UBIF100 substitutes. Rated for 22kAIC at 480VAC and 14kAIC at 600VAC, the unit handles demanding environments and includes load-side lugs.Specifications
| Brand | Federal Pacific |
|---|---|
| Part Number | HEF631100 |
| Series | HEF |
| Amperage | 100A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 42kA @ 240VAC, 22kA @ 480VAC, 14kA @ 600VAC, 10kA @ 250VDC |
| Frame Type | HEF |
|---|---|
| Terminal Type | Lugs |
| For Use With | FPE Panelboards and Switchboards |
| Wire Gauge | 4 AWG - 1/0 AWG (Cu/Al) |
| Max Wire | 1/0 AWG |
| Min Wire | 4 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | UL 489, NEMA AB-1 |
| Approval | UL |
| Temp Rating | 40C |
| Construction Features | High Interrupting Capacity |
Product FAQs
7 answersWhat panelboards are compatible with the HEF631100 circuit breaker?
This breaker is designed for installation in legacy Federal Pacific Electric (FPE) panelboards and switchboards that accept H-frame bolt-on breakers.
Can the HEF631100 replace older Federal Pacific breakers?
Yes, the HEF631100 serves as an exact replacement for the discontinued NEF631100 circuit breaker.
What wire sizes are accepted by the factory lugs on the HEF631100?
The included lugs accommodate 4 AWG to 1/0 AWG copper or aluminum conductors. Ensure proper torque specifications are applied during installation to prevent thermal issues.
What voltage systems can the HEF631100 be installed in?
This breaker supports 240VAC, 480VAC, and 600VAC systems, as well as 250VDC applications. The interrupting capacity scales based on the system voltage, up to a maximum of 42kAIC at 240VAC.
How does the HEF631100 mount into the panelboard?
This is a bolt-on circuit breaker that secures directly to the panel busbars using mechanical fasteners, ensuring a stable connection in commercial and industrial environments.
What type of protection does the HEF631100 provide?
It features a thermal magnetic trip unit providing long-time thermal protection against overloads and instantaneous magnetic protection against short circuits.
Does the HEF631100 allow for trip curve adjustments?
No, this breaker features a fixed trip unit, meaning the long-time and instantaneous trip settings cannot be adjusted in the field.
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