Federal Pacific HEG631050 Molded Case Circuit Breaker
- 50A
- 3 Pole
- Bolt-On
Quantity
Federal Pacific HEG631050 - 50A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
Rated for 600VAC commercial environments, the Federal Pacific HEG631050 is a 50-amp, three-pole molded case circuit breaker. It delivers robust overcurrent protection for aging electrical infrastructure. This bolt-on breaker installs into legacy Federal Pacific panelboards without modifications. It acts as an exact cross-reference for discontinued NEG631050 and NEF631050 components. The unit features a 22kAIC rating at 480VAC and utilizes standard thermal-magnetic trip functions.Specifications
| Brand | Federal Pacific |
|---|---|
| Part Number | HEG631050-R |
| Series | HEG |
| Amperage | 50A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 42kA @ 240VAC, 22kA @ 480VAC, 18kA @ 600VAC |
| Frame Type | HEG |
|---|---|
| Terminal Type | Lugs |
| For Use With | Federal Pacific Panelboards |
| Wire Gauge | 14-1/0 AWG |
| Max Wire | 1/0 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Accessories | Load Side Lugs Included |
|---|---|
| Standards | UL 489, NEMA AB-1 |
| Approval | UL |
| Temp Rating | 40C |
| Construction Features | High Interrupting Capacity |
Product FAQs
5 answersWhat panelboards accept the HEG631050 circuit breaker?
This breaker is designed specifically for legacy Federal Pacific Electric panelboards that accommodate H-frame molded case circuit breakers.
What wire sizes are compatible with the terminals on this breaker?
The load side lugs on the HEG631050 are rated to accept wire gauges from 14 AWG up to 1/0 AWG.
How does the LI trip function operate on the HEG631050?
The LI designation indicates a thermal-magnetic trip unit with fixed Long-Time and fixed Instantaneous protection. The thermal element responds to sustained overloads, while the magnetic element trips immediately during short-circuit events.
Is the Federal Pacific HEG series still in active production?
No. Federal Pacific Electric is no longer in business, and the HEG frame is an obsolete legacy product.
Is the HEG631050 considered a Stab-Lok breaker?
No. The HEG631050 is a commercial-grade, bolt-on molded case circuit breaker. It is entirely separate from the residential Stab-Lok product line.
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