Federal Pacific HEG631040 Molded Case Circuit Breaker
- 40A
- 3 Pole
- Bolt-On
Quantity
Federal Pacific HEG631040 - 40A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
Engineered for commercial applications, the Federal Pacific HEG631040 3-pole, 40A molded case circuit breaker provides reliable thermal-magnetic protection for 600VAC electrical distribution systems. This bolt-on MCCB mounts into legacy Federal Pacific panelboards without requiring adapters. It serves as an exact drop-in replacement for older NEG631040 and NEF631040 breakers. The unit delivers a 22kAIC interrupting capacity at 480V and features fixed trip settings.Specifications
| Brand | Federal Pacific |
|---|---|
| Part Number | HEG631040-R |
| Series | HEG |
| Amperage | 40A |
| 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 answersWhich panelboards are compatible with the HEG631040 circuit breaker?
This breaker is engineered for legacy Federal Pacific commercial panelboards. It mounts into systems like the FPE BDP double-hole bus panels when paired with the correct connector kit.
Can the HEG631040 replace older Federal Pacific breaker frames?
Yes, this unit serves as a direct drop-in replacement for older NEG631040 and NEF631040 molded case circuit breakers without requiring panel adapters.
How does the LI trip function operate on the HEG631040?
The LI code stands for Long-Time and Instantaneous trip functions. The thermal Long-Time element prevents damage from sustained overloads, while the magnetic Instantaneous element trips the breaker immediately during a short circuit.
Is this HEG frame breaker part of the Federal Pacific Stab-Lok recalls?
No. The HEG631040 is a commercial-grade, bolt-on molded case circuit breaker. It does not use the residential plug-on Stab-Lok design that was associated with historical safety issues.
What hardware is required to install this breaker into an FPE panelboard?
Because it is a bolt-on unit, you will need a compatible panelboard connector kit, such as the NEF3K for dual-branch setups in BDP double-hole bus panels, to secure the breaker to the busbar.
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