The WH40 is Intermatic's original 'Little Gray Box' timer. It can provide the homeowner substantial savings on his/her electricity costs. It has heavy duty 40 amp and 10,000 watt ratings. With a convenient external override switch, the WH40 is easy to install and easy to program, with 2 sets of on/off trippers included. This timer is ideal for water heater control of residential, commercial, schools and military facilities. The enclosure is NEMA 1 rated indoor steel and has a lockable hasp, which holds the door closed.
- For use in residential, commercial, industrial, military, and school applications
- CSA listed
- Double pole, single throw
- Convenient external override switch
- NEMA 1 rated indoor steel enclosure