TeSys SK suppressor module, for coil protection of mini contactors LP1SK and mini control relays CA3SK. To be used with 24-250V DC control circuits, it provides a flywheel diode protection ensuring no transient overvoltage. Clipping onto the right-hand side of contactor (no tools required), polarised component. Sold in lots of 10 units. Green Premium compliant (RoHS/REACh).