Electronic Astronomic
7-Day Time Switch
Time Switch
• Input Voltage: 120/208/240/277 VAC, 60 Hz
• Power Consumption: 6.0 W Max.
• Contact Conguration: SPST (ET8015C), DPST (ET8215C). See
wiring diagrams on next page.
Switch Ratings—ET8015C, ET8215C (per pole)
• 30 A Inductive/Resistive, 120/240 VAC, 60 Hz
• 20 A Magnetic Ballast, 120-277 VAC, 60 Hz
• 1 A Electronic Ballast 120-277 VAC, 60 Hz
• 20 A Resistive, 28 VDC
• 5 A Tungsten: 120/240 VAC, 60 Hz
• 1 HP, 120 VAC, 60 Hz
• 2 HP, 240 VAC, 60 Hz
Set Points (Events)—Each load output of the Time Switch can support up
to 14 timed ON and 14 timed OFF events per day as well as Astro ON
and Astro OFF events.
Installation and User Instructions
MODEL ET8000 Series
The Intermatic ET8000 Series Electronic Astronomic 7-Day Time
Switch automatically switches loads to a preset weekly schedule with
to-the-minute accuracy.
• The astronomic feature provides an automatically adjusted sunset
ON and sunrise OFF to eliminate the need for separate photo control
devices.
• The independent 7-day programming provides complete exibility for
applications where load switching differs each day of the week.
• Astronomic programming can be combined with independent
programming to provide a sunset ON and timed OFF program.
Use the ET8000 series as an ON/OFF timer in applications requiring
7-day astronomic 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 as well as Astro ON and Astro
OFF events. The program can be overridden by pushing the ON/OFF load
override button(s).
The ET8000 Series Time Switch is designed to directly switch tungsten
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
Front View
Rear View
B
A
WARNING
Risk of Fire or Electric Shock
• Disconnect power at the circuit breaker(s) or disconnect switch(es) before installing or servicing.
• Installation and/or wiring must be in accordance with national and local electrical code
requirements.
• For outdoor locations or wet locations (rain-tight), conduit hubs that comply with requirements of
the UL514B (standard for fitting conduit and outlet boxes) are to be used.
• This enclosure does not provide grounding between conduit connections. When metallic conduit
is used, you must also install grounding type bushings and jumper wire.
• For plastic enclosures, bonding between conduit connections is not automatic and must be
provided as part of the installation.
• Use #18 - #10 AWG wires, rated at least 75°C - COPPER conductors ONLY.
• If the power disconnect point is out of sight, lock it in the OFF position and tag it to prevent
unexpected application power.
• Make sure there is no wire insulation under the terminal plate on the time switch connector.
Firmly tighten terminal screws.
• Do not remove insulator that is covering terminals.
• KEEP DOOR CLOSED AT ALL TIMES when not servicing.
NOTICE
• Do NOT touch circuit board components, contact can create a static discharge, which can
damage the microprocessor.
Installation Instructions
Slide down
to remove
battery case
Snap out catch
Tilt top forward
2. Set voltage selector for desired input voltage. The timer is
shipped with voltage set for 277 VAC. To
operate at 120, 208 or 240 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.
3. The timer is shipped with DST (Daylight Saving
Time) enabled. To disable DST, insert a jumper
at location marked DST. See location B in Rear
View above and detail at the right.
4. ET8215C ONLY—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
contactors 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.)
1. Remove the mecha-
nism from the case by
depressing the catch
at the top of the case
and pulling out, as
shown.
Battery-Powered Clock Operation—3 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—ET8xx5C – TYPE 1 indoor metal enclosure
Knockouts—Combination 1/2-3/4 inch size, 1 on back and each side,
2 on bottom
Wire Size—AWG #18 through #10
1
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