Eaton / Cutler-Hammer EGB3040FFG Molded Case Circuit Breaker

The "FFG" indicates that the breaker is equipped with a fixed thermal and fixed magnetic trip unit, and it includes factory-installed line and load side lug terminals.

These prefixes all designate Series G EG-frame breakers but indicate different maximum interrupting capacities. The EGB offers a standard rating of 18kA at 480VAC, while the EGE, EGS, and EGH models provide progressively higher short-circuit ratings for systems with higher available fault currents.

Yes, the EGB3040FFG comes complete with standard line and load side lugs. These terminals accept wire sizes ranging from 14 AWG to 1/0 AWG.

This EG-frame breaker is designed for installation in Eaton Series G enclosures, switchboards, and motor control centers (MCCs).

Yes, this molded case circuit breaker is rated for use in DC power systems up to 250VDC, providing an interrupting capacity of 10kA.

The EGB3040FFG is a unit-mount, feed-thru breaker. It bolts directly to the panel backpan or mounting plate rather than snapping onto a DIN rail or plugging into a busbar.

No, this breaker features a non-interchangeable thermal-magnetic trip unit with fixed long-time and fixed instantaneous settings. The trip curve cannot be adjusted.

The "LI" designation means the breaker provides Long-Time thermal protection to prevent overheating from gradual overloads, and Instantaneous magnetic protection to clear severe short circuits immediately.