IEC 947-4-1, IEC 439-1, VDE 0660-102 and EN 60947. Please refer to datasheet to confirm which model is supplied with or without relay. Direct motor control starter. The starter features a TeSys LC1Kxx contactor, 1 TeSys LR2k thermal relay (depending on model), 1 green "On" button, 1 red "Stop / Reset" button and an indicator light.