- for electromechanical AC counters
An AC counter can be operated directly with mains voltage. Attention! If the counter coil lies parallel to a chain of contactors which are supplied by a common isolation transformer (VDE regulations), extremely high voltage peaks result which reach several kV capable of destroying the counter coil. In this case, we recommend operating the counter with 24 VAC via a separate transformer.
- for electromechanical DC counters fed by battery voltage up to 25 pulses