Built for heavy-duty commercial environments, this 3-pole molded case breaker ensures continuous operation of older Federal Pacific infrastructure. The bolt-on design installs securely into compatible legacy panelboards, eliminating the need for complex retrofits. Featuring a fixed thermal-magnetic trip mechanism and a 22kA rating at 480VAC, it acts as a reliable substitute for discontinued NEF631100 and NEG631100 hardware.
What panelboards are compatible with the HEG631100 circuit breaker?
This bolt-on breaker is designed for use in legacy Federal Pacific commercial panelboards that accept H-frame molded case circuit breakers.
Can the HEG631100 replace older Federal Pacific breakers?
Yes, the HEG631100 serves as a direct replacement for discontinued NEF631100 and NEG631100 circuit breakers. This allows facility managers to maintain existing infrastructure without complex retrofits.
What wire sizes are accepted by the lugs on this breaker?
The included lugs accommodate wire gauges from 14 AWG up to 1/0 AWG.
Is the HEG631100 part of the Federal Pacific Stab-Lok series?
No. The HEG631100 is a commercial-grade, bolt-on molded case circuit breaker. It is not part of the residential Stab-Lok product line, which has a known history of safety issues.
How does the HEG frame differ from standard Federal Pacific breakers?
The HEG frame provides a higher interrupting capacity than standard NEF breakers, delivering a 42kAIC rating at 240VAC and 22kAIC at 480VAC for robust overcurrent protection in commercial facilities.
Can the trip settings on the HEG631100 be adjusted in the field?
No, this breaker features a fixed thermal and fixed magnetic trip mechanism for both long-time and instantaneous protection.
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