The ABB E4S3200 is a high-capacity low-voltage air circuit breaker from ABB’s Emax E4S series, designed for industrial and commercial three-phase power distribution systems. It provides reliable protection against overloads, short-circuits, and fault conditions when used with an appropriate electronic trip unit. The breaker can be used as a main distribution breaker or feeder protection device in switchgear installations. It is available in various configurations, including fixed or withdrawable mounting, and supports electronic trip units such as PR121/P-LI or PR121/P-LSIG for adjustable and coordinated protection.