Specification

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Energy Controls
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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 identication 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 congurations 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 ___________.
Example for 240 volt input Model # EH40 DPST
Timer
Power
240 VAC
Input
LOAD
LINE 2
LINE 2
LINE 1
LINE 1
1 2 3 4 5 6
Example for 240 VAC input Model # EH40 DPST
Timer
Power
120 VAC
Input
LOAD
Hot
Neutral
1 2 3 4
Example for 120 VAC input Model # EH10 SPST
7 ¾"
3"
5"
[9.7 cm]
[7.6 cm]
[12.7 cm]
EH10 & EH40