Relay, time delay. Contactor: 240VAC 10A. Coil: 24VDC. Connection: Octal. Electrical conf: DPDT. Body: 1.75 x 2.4 x 3.6" above socket. Weight: 5 oz. Time delay: 0.1 sec - 2 hrs. 16-Ranges via four top-mounted DIP switches. Min/max Control pot on top. Upon application of the control voltage (24) the relay contacts transfer for the preset time, then switch back. Input voltage must be removed and reapplied to reset the time delay .