Eaton three pole contactors with electro magnetic ac coil dil m series eaton 277178 the eaton 277178 dilm25 01 is a three pole contactor with electro magnetic dc coil of 24v from the dil m series the contactor features dual power terminals on units up to 400a the clamping chambers are cleverly designed to apply sufficient holding pressure to cables of varying sizes conventional designs are often limited by the size of the largest cable in the chamber the line also features ingenious mech