The EL9550-0010 system terminal contains an overvoltage filter for the 24 V DC field and system supply. The filter protects the EtherCAT Terminal from line-bound surge voltages that can occur due to high-energy, dynamic disturbances such as switching overvoltages at inductive consumers or indirect lightning strikes at the supply lines.

The EL9550-0010 can be used to protect the terminal station, especially digital terminals, against damage in particularly harsh environments such as onshore and offshore areas and in shipbuilding. The current load is 10 A in total for field and system supply.

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