WHQ

WHQ4
HVACR

The Grässlin WHQ Series Electric Water Heater Time Switches significantly reduce the annual cost of operating electric water heaters. The time switch is a universal electromechanical controller, which can be field-configured for various power supply voltages capable of operating residential, commercial, and industrial water heaters with a maximum 10,000 watt capacity.

  • Series Overview
  • Model Lineup
  • Specifications
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 • Real clock face

• Captive trippers – cannot be lost

• 24-Hour / Skip-a-Day / 7-Day programming

• Manual 3-way override

• Power and status LED indicators

• Battery backup

• Raintight UL Type 3R enclosure

• Easy multi-voltage field-adjustable DIP switch

• Saves energy by shutting hot water heaters off during

“off peak periods”

•7-Day model - Title 24 listed

Product Ratings
cULus
ModelDescriptionVolts ACSwitch ConfigurationAmp RatingMinimum ON-OFF Time
WHQ424-Hour water heater time switch120/208/240/277DPDT4015 minutes
WHQ7WHQ7120/208-240 or 277 VACDPDT402 Hours

Enclosure: Raintight UL Type 3R enclosure

Supply voltage: 120-208/240 or 277 VAC

Switch Rating: N.O. Contacts - 40A Resistive @ 250 VAC 10,000 Wats

                     N.C. Contacts - 30A Resistive @ 250 VAC 7,500 Watts

Output: 40A DPDT

Shipping Weight: 3 lbs. (1.4 kg)

  • WHQ4
  • WHQ7

WHQ4

WHQ4
WHQ4

 

The Grässlin WHQ4 Electric Water Heater Time Switch significantly reduces the annual cost of operating electric water heaters. The time switch is a universal electromechanical controller, which can be field-configured for various power supply voltages capable of operating residential, commercial, and industrial water heaters with a maximum 10,000 watt capacity.

WHQ7

WHQ4
WHQ7
The Grässlin WHQ7 Electric Water Heater Time Switch significantly reduces the annual cost of operating electric water heaters. The time switch is a universal electromechanical controller, which can be field-configured for various power supply voltages capable of operating residential, commercial, and industrial water heaters with a maximum 10,000 watt capacity.
WHQ

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