TeSys SK suppressor module, for coil protection of mini contactors LC1SK, LC1SKGC, LP1SK and mini control relays CA2SK, CA3SK. To be used with 72-250V AC or DC control circuits, it provides varistor protection limiting the transient voltage to 2 Uc max. Clipping onto the right-hand side of contactor (no tools required), it is directly connected. Sold in lots of 10 units. Green Premium compliant (RoHS/REACh).