For troublefree operation of machines and control systems, the need to suppress harmful voltage surges - transients - produced when motors, contactors and other inductive loads are switched off, is well accepted.
CARETRONICS make contactor coil surge suppressors are available in varistor based, RC based and diode based types.
10 RC 22 - RC based suppressor for 24 volt AC/DC systems.
C 13014 - Varistor based for 110 volt contactor coils.
C 24014 - Varistor based for 220 volt contactor coils.
CS 503 - Diode based for 24 volt DC systems. DIN rail adaptors are available for all models.