TeSys Deca suppressor module, for contactors LC1D09-D38, LC1DT20-DT40 and control relays CAD.To be used with 5-600V DC control circuit voltage, it provides a flywheel diode protection ensuring no transient overvoltage.Clip-on side mounting, overall size of the contactor is unchanged.Green Premium compliant (RoHS/REACh).