Kendrion Kuhnke Vico 404 User Manual page 11

Kendrion Kuhnke Automation GmbH Reliability, Safety
Inductive actuators
Switching off inductances (such as from relays, contactors, solenoids or switching magnets) produces surge
voltages. It is necessary to reduce these extra voltages to a minimum.
Throttling elements could be diodes, Z-diodes, varistors or RC elements. Their rating should conform to the
specifications provided by the manufacturer or supplier of the actuators.
Kuhnke Vico (E 854 DE) 11
28-03-2019