Electronic
7-Day Time Switch
Time Switch
Input Voltage: 120/208/240/277 VAC, 50/60 Hz
•
Power Consumption: 6.0 watts max.
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Contact Configuration: SPST (ET1705C), DPST (ET1725C), and
•
SPDT (ET8115C). See wiring diagrams on next page.
Switch Ratings—ET1705C, ET1725C (per pole)
30A Inductive/Resistive: 24/120/208/240/277 VAC, 60 Hz
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20A Ballast: 120-277 VAC, 60 Hz
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20A Resistive: 28 VDC
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5 A Tungsten: 120/240 VAC, 60 Hz
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1 HP: 120 VAC, 60 Hz
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2 HP: 240 VAC, 60 Hz
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Switch Ratings—ET1715C (NO/NC) Normally Open/Normally Closed Contact
20A/10A Inductive/Resistive: 120/208/240/277 VAC, 60 Hz
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20A/10A Resistive: 28 VDC
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6A/3A Ballast: 120-277 VAC, 60 Hz
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5A/3A: 120/240 VAC Tungsten
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1 HP / ¼ HP: 120 VAC, 60 Hz
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2 HP / ½ HP: 240 VAC, 60 Hz
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Set Points (Events)
—Each load output of the Time Switch can support up
to 14 timed ON and 14 timed OFF events per day.
Battery-Powered Clock Operation
—2 years minimum (uses 2 AAA
industrial grade alkaline batteries, supplied)
Minimum ON or OFF time
—1 minute
Maximum ON or OFF time
—6 days, 23 hours, 59 minutes
Shipping Weight
—2.5 lb. (1.1 kg)
Enclosures
—Three enclosure options are available.
ET17x5C – NEMA 1 indoor metal enclosure
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ET17x5CR – NEMA 3R indoor/outdoor lockable metal enclosure
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ET17x5CPD82 – NEMA 3R indoor/outdoor lockable impact resis-
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tant polycarbonate enclosure with clear cover
Knockouts
—Combination 1/2-3/4 inch size, 1 on back and each side,
2 on bottom
Wire Size
—AWG #10 through #18
Installation and User Instructions
MODEL ET1700 Series
The Intermatic ET1700 Series Electronic 7-Day Time Switch auto-
matically switches loads to a preset weekly schedule with to-the-
minute accuracy.
The independent 7-day programming provides complete flexibility
for applications where load switching differs each day of the week.
Use the ET1700 series as an ON/OFF timer in applications requir-
ing 7-day load control such as lighting, air conditioning systems,
pumps, etc. Each load output of the Time Switch can support up to
14 timed ON and 14 timed OFF events per day. The program can
be overridden by pushing the ON/OFF load override button(s).
The ET1700 Series Time Switch is designed to directly switch tung-
sten or ballast loads up to its rating, and inductive or resistive loads
up to 30A at 120, 208, 240, or 277 VAC.
Specifications
With Battery
Carryover
Description
WARNING: Disconnect the
power to the Time Switch
and the loads before instal-
lation.
Remove the mecha-
1.
nism from the case by
depressing the catch at
the top of the case and
pulling out, as shown.
CAUTION: Do not
touch circuit board
components since
static discharge could damage the microprocessor.
Set voltage selector for desired input voltage.
2.
The timer is shipped with voltage set for 120
VAC. To operate at 208, 240 or 277 VAC, move
the selector switch to the desired setting as
marked on the circuit board. See location
A
in
Rear View
above and detail at the right.
The timer is shipped with DST (Daylight Sav-
3.
ing Time) enabled. To disable DST, insert a jumper at location
marked DST. See location
B
in
Rear View
above
and detail at the right.
ET1725C ONLY
4.
—Decide whether you want
to control multiple loads simultaneously (SIM),
independently (IND), or with a 2-second pulse
(PUL) (e.g., for use with mechanically held con-
tactors or bell ringing applications), and make sure the jumper is
positioned accordingly. See location
B
in
Rear View
above and
detail at the right. (The unit is shipped with the loads set for IND.)
Installation Instructions
Slide down
to remove
battery case
Snap out catch
Tilt top forward
Front View
Rear View
B
A
Electrical shock hazard. To avoid fire, shock, or death, disconnect all
•
power before installing or servicing time switch or connected loads.
Follow local electrical and safety codes, National Electric Code (NEC)
•
and Occupational Safety and Health Act Codes (OSHA).
If the power disconnect point is out of sight, lock it in the OFF position
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and tag it to prevent unexpected application of power.
This time switch must be grounded.
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Do not exceed maximum current carrying capacity.
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Always replace the plastic insulator covering the terminal before
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powering ON.
WARNING–
Risk of Fire or Electric Shock
