The Schneider Electric Acti 9 iEZ EZD400E (represented by model EZD400A3p) is a high-current, three-pole, electronic circuit breaker from the advanced Acti 9 iEZ range, built on a 400A frame. It is equipped with a standard electronic trip unit (E-type), providing fully adjustable overload and short-circuit protection. Designed for reliable feeder and distribution protection in commercial and industrial applications, it offers the precision and stability of electronic tripping in a modular, compact format.