Intermatic WHQ4 24-Hour Water Heater Timer with Battery Back-Up

Intermatic WHQ4 24-Hour Water Heater Timer with Battery Back-Up

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Item# Intermatic WHQ4

Model Number


Designed for control of commercial, industrial or residential electric water heaters
up to 10,000 Watts capacity running at 208-240 VAC
NEMA 3R outdoor enclosure can be placed in basements or mechanical rooms


This unit is designed to save energy and maximize hot water usage throughout the
day. For example, the unit could be programmed to turn ON during periods of high
usage such as in the early morning hours and OFF during low demand periods such as
late evenings.

N.O. Contacts:
40 Amp Resistive, 250 VAC
10,000 W
1 HP (16 FLA, 90 LRA), 120 VAC
2 HP (12 FLA, 52 LRA), 208-277 VAC
N.C. Contacts:
30 Amp Resistive, 120-277 VAC
7,500 W
1 HP (12 FLA, 30 LRA), 120 VAC
2HP (10 FLA, 30 LRA), 240 VAC
Wiring Connections: Screw box lug terminals
Operating Temperature Range: 40F to 131F (40C to 55C)
Operating Humidity: 0 to 95% non-condensing
Enclosure Dimensions: 8.795 in. H x 6.631 in. W x 2.935 in. D
Shipping Weight: 3 lbs.
Switch Configuration: DPDT (2-N.O. and 2-N.C. Contacts)
Battery Backup: Rechargeable Quartz battery with 7 days minimum backup life

Model Number: WHQ4

Switch: 24-Hour Water Heater Time Switch Volts AC: 120/208/240/277 Switch Configuration: DPDT Amp Rating: 40/30 Minimum ON/OFF Time: 15 minutes







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