-For the overvoltage fine protection of bus devices -For inserting in a bus device instead of a 193 bus terminal or for direct connection to a bus terminal -For surge protection through connection of the yellow/green ground conductor to the next grounding point -2 socket contacts (1 mm ?) for insertion in bus devices -2 solid wires (0.8 mm ?) for connection to the bus terminal -A solid wire (0.75 mm2) for surge protection -Rated voltage 24 V DC -Rated current 6 A -Rated discharge surge current 5 kA -Protection level 350 V