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