The ACB E4.2H is a high-rated current circuit breaker with a capacity of 4000 A and 3P. It has an Icu rating of 100 kA at 415 VAC, indicating its ability to handle high fault currents. The breaker also has a rated short-time withstand current, Icw (1s), of 85 kA. The ACB E4.2H features a withdrawable auto EKIP touch LSIG trip unit, which provides enhanced protection and control capabilities. It is equipped with shunt opening and closing mechanisms, as well as a motor operator that operates at 30 VAC/DC. This complete package includes additional components such as WMP, FP, YO, YC, and MOP to ensure comprehensive functionality for various applications.