The TA-2673 is a versatile timer which can be
integrated with such products as electrified
door hardware, automatic door operators and
switches.

Details

 With two SPDT relays and 3 programmable time delays the TA-2673 can perform several functions following the activation of the trigger input.

  Once the trigger is activated delay #1 begins. After the delay #1 time has elapsed (0-7s) Relay #1 activates for delay time #2 (0-63s). After the delay #2 time has elapsed Relay #2 activates and stays activated for delay time #3 (0-63s).