Federal Pacific HEF425070 Molded Case Circuit Breaker
- 70A
- 2 Pole
- Bolt-On
Quantity
Federal Pacific HEF425070 - 70A 2 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
Part of the legacy H-Frame series, the Federal Pacific HEF425070 provides essential overcurrent protection for commercial environments. This 70-amp, 2-pole molded case circuit breaker is built to maintain existing infrastructure without requiring complete system overhauls. The bolt-on design ensures a secure fit into original FPE panelboards and switchboards. It serves as an exact cross-reference for NEF425070 models, featuring a high interrupting capacity of 42 kAIC at 240V.Specifications
| Brand | Federal Pacific |
|---|---|
| Part Number | HEF425070-R |
| Series | HEF |
| Amperage | 70A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC |
| Phase | 1 |
| AIC Rating | 42kA @ 240VAC, 22kA @ 480VAC |
| 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 Thermal, Fixed Magnetic |
| 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
6 answersWhat equipment is the Federal Pacific HEF425070 compatible with?
This bolt-on molded case circuit breaker is designed specifically for legacy Federal Pacific (FPE) commercial panelboards and switchboards that accommodate H-frame breakers.
What are the wire size requirements for the load lugs on the HEF425070?
The factory-installed load side lugs accept wire sizes from 4 AWG up to 1/0 AWG. They are rated for both copper (Cu) and aluminum (Al) conductors.
Is the HEF425070 part of the FPE Stab-Lok residential series?
No. The HEF series is a commercial and industrial molded case circuit breaker (MCCB) with a secure bolt-on connection. It is entirely different from the residential Stab-Lok plug-on breakers.
Can I adjust the trip curve settings on this 70A breaker?
No, the HEF425070 features a fixed thermal and fixed magnetic trip unit. The long-time and instantaneous protection parameters are factory-set and cannot be adjusted in the field.
How is the HEF425070 secured inside the panelboard?
It utilizes a bolt-on mounting configuration, which requires bolting the line side directly to the panelboard bus for a secure, high-vibration-resistant electrical connection.
Are there modern drop-in replacements for the FPE HEF425070?
Because Federal Pacific is a legacy brand, there are no direct drop-in replacements from current manufacturers for the HEF frame. You must use an authentic FPE HEF breaker or undergo a complete panel retrofit.
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