T104-20, WH21 & WH40

WH40

Utilities in many areas of the country offer two electric rates for residential or commercial customers. One rate has the regular daytime electrical rate, the other is the “off-peak” rate. The “off-peak” rate provides customers with “lower-priced” electricity during the nighttime and weekend periods. The Mechanical Water Heater Timers allow the customer to shift electricity use into these “off-peak” time periods in an attempt to save utility costs.

  • Series Overview
  • Model Lineup
  • Specifications
  • Resources

• Convenient external override switch (WH21 and WH40 only)

• Includes ON/OFF trippers

 Water Heater Control for:

  • Residential
  • Commercial
  • Industrial
  • Institutional/Schools
  • Military Facilities
Product Ratings
cCSAus
ModelSwitchClock Supply Volts 60 HzWattsExternal SwitchAmps - per pole
T104-20DPST208-27710000NO40
WH21SPST208-2406250Yes25
WH40DPST24010000Yes40

Enclosure: Type 1 steel enclosure

Motor VAC 60 Hz: 208-277

Amps (per pole): 40 (T104-20 & WH40), 25 (WH21)

Switch Type: DPST (T104-20 & WH40), SPST (WH21)

External Switch: No (T104-20), Yes (WH21 & WH40)

Power Input: 3 Watts Maximum

Shipping Weight: 3 lbs. (1.4 kg)

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