Intermatic EH40 Specification

Intermatic EH40 Specification
EH10 & EH40
Water Heater Time Switches
Project:
Location:
EH10 & EH40
Product Type:
Electronic Water Heater Time Switches
Contact/Phone:
The Electronic Water Heater Series time switches provide control for
electric water heaters with to-the-minute accuracy in programming and Model #:
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
EH40Inductive: 30 Amp, 240 VAC
Resistive: 30 Amp, 240 VAC
Tungsten: 5
Amp, 240 VAC
1 ½ HP, 240 VAC
EH10, EH40
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
LR3730
Energy Controls
EH10 & EH40
Specification
The time switch, which shall be a digital 7-Day type capable of permitting up to 6 ON/OFF events, can be programmed
daily or weekly. The time switch shall provide a minimum ON or OFF time of 1 minute. The time switch shall be powered
by a ____________ (120)(240) VAC, 50/60 Hz power supply. The time switch shall provide a feature for programming all
7 days, 5 week days only, two weekend days only, or each day independently. The AA type alkaline battery shall protect
the program for a minimum of 3 years. The time switch mechanism shall be a snap-in design to provide ease of
mechanism removal from the enclosure. The time switch enclosure shall be a Type 1 lockable steel enclosure, which
shall be painted with an electrostatic process to eliminate the potential for corrosion. The time switch shall include an
external override to allow overriding of the time switch without unlocking or opening the cover. A load indicator (LED)
shall be provided in the time switch and shall be visible through a clear display window for viewing the load status
without opening the time switch cover. The time switch enclosure shall provide a minimum of 31 cubic inches of wiring
space and shall provide a non-removable cover, which shall swing open a full 180 degrees. The time switch shall provide
clear terminal identification on a non-curling terminal insulator. Terminal connections shall be made using teeter-type
terminal screws to provide secure connections for wire sizes up to #10 AWG. Switch configurations shall be
_____________ (SPST)(DPST) with an agency listed switch rating of:
• 30 Amps per pole Resistive, Inductive, 120/240 VAC
• 1 HP, 120 VAC
• 1½ HP, 240 VAC
• 5 Amps Tungsten, 120/240 VAC
The time switch shall be agency listed under Energy Management Equipment and shall be Intermatic model ___________.
Diagrams
Timer
Power
1
2
3
4
Neutral
120 VAC
Input
Hot
7 ¾"
LOAD
[9.7 cm]
Example for 120 VAC input Model # EH10 SPST
Timer
Power
1
2
3
4
5
6
LINE 2
5"
240 VAC
Input
LINE 1
3"
[12.7 cm]
LINE 1
LINE 2
LOAD
Example for 240 volt input Model # EH40 DPST
Example for 240 VAC input Model # EH40 DPST
Energy Controls
www.intermatic.com
[7.6 cm]
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