The Intermatic T104P is a 40 amp 24-hour double pole single throw(DPST) surface mount mechanical timer switch with outdoor plastic enclosure 208-277 volt in gray color finish. The intermatic timer T104P is a heavy-duty outdoor mechanical timer switch designed for industrial, commercial and residential applications. It features a high horsepower rating that is ideal for loads up to 40 amps resistive from 208 volts and direct 24-hour time switch control of most loads.