Releco CT2-A Series Plug In Timer Relay, 9.5 → 18V dc, 0.2 → 30 min, 0.2 → 30s, 1-Function

Function - 211
Plugs in between a relay and its socket, enabling the relay to be operated as a time relay
Fine time setting achieved by a thumb wheel potentiometer with the relay fitted

UL, CSA