Time Delay Relays CEF50 series
CEF50 (pick-up) and CEF50MU (drop-out) relays are adjustable electronic time-delayed relays. 
The CEF50MU2 variant allows having a control source independent of the auxiliary source. 

Available with DC or AC coils 
Three different time ranges are available with  time delays ranging from 0.012s to 42hours
Must be used in conjunction with a panel-mounting socket of type: F10 or F20

See the Auxiliary Relay page for a full brochure.