Specification

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Energy Controls
EH10 & EH40
EH10 & EH40
Electronic Water Heater Time Switches
The Electronic Water Heater Series time switches provide control for
electric water heaters with to-the-minute accuracy in programming and
time keeping. These time switches can be programmed for repeat daily
scheduling, 5-Day work week scheduling, weekend scheduling or
individual day scheduling.
Features
• Timers can be scheduled for operation during the lowest
time-of-day rates
• 6 ON/OFF events can be performed daily or weekly
• External override switch
• LED load indicator for ease in scheduling
• Battery carryover protects time keeping and program information
for a minimum of 3 years
Ratings
Enclosure: Type 1- Indoor
Knockouts: Combination ½" – ¾" nominal
knockouts, one on back and each side
of case and two on bottom
Switch Type: See table
Switch Rating:
EH10- Inductive: 30 Amp, 120 VAC
Resistive: 30 Amp, 120 VAC
Tungsten: 5 Amp, 120 VAC
1 HP, 120 VAC
EH40- Inductive: 30 Amp, 240 VAC
Resistive: 30 Amp, 240 VAC
Tungsten: 5 Amp, 240 VAC
1 ½ HP, 240 VAC
Power Input: See table
Memory Hold Up: AA type alkaline battery
Operating Temperature: -40ºF to 104ºF (-40ºC to 40ºC)
Shipping Weight: 3 lbs. (1.4 kg)
Warranty: Limited 1 year
Model Number Switch
Clock Supply
Volts 50/60 Hz
Clock Supply
Power Input
(Watts)
Watts External Switch Amps/Pole
EH10 SPST 120 1 3600 Yes 30
EH40 DPST 240 3 7200 Yes 30
EH10, EH40
Water Heater Time Switches
LR3730