There are five timers with different voltage requirements (we stock the 12VDC and 24VDC and AC).  The 12 volt DC timer only has a single-pole single-throw internal relay.  The 24 volt DC and AC timers have a single-pole-double-throw relay.

Power consumption:  12VDC timer = 90-124 micro amp with relay NOT energized; energized = 33-49 MA.

24VDC timer approximately the same