Instructions / Assembly
Knockouts
Mounting holes
1
Neutral
120 VAC 
Input
Hot
2 3 4
Timer Power
Load
Only install jumper 
if timer input 
and load voltage 
are the same
ET1105 configured for SPST, 120 VAC load
1
Line 2
240VAC Input
Line 1
2 3 4 5 6
Line 1
Line 2
Install jumper only if timer input 
and load voltage are the same
Timer Power
Load
ET1125 configured for 240VAC DPST load 
with jumper set to SIM
1
L2/N
120/208/240/277
VAC Input
Line 1
2 3 4 5 6
ON
Install jumper only if timer input 
and load voltage are the same
OFF
Timer Power
ET1125 configured for pulse SPST load 
with jumper set to PUL
1
L2/N
120/208/240/277
VAC Input
Line 1
2 3 4 5 6
Timer Power
Load 
1
Load 
2
Line 
1
Line 
2
ET1125 configured for 2 SPST loads 
with jumper set to IND
1
L2/N
120/208/240/277
VAC Input
Line 1
2 3 4 5 6
Timer Power
Load 
1
Load 
2
Line 
1
Line 
2
ET1125 configured for DPST loads 
with jumper set to SIM
Programming Overview
By pressing the MODE button, the Time Switch will cycle through the 
menus necessary for programming the current time, date, and timed 
events.
The basic procedure is to use the MODE button to move from one 
menu to the next (e.g., DATE, TIME, etc.), the + or – buttons for the 
rst part of a setting (e.g., MONTH), the ENTER button to move to the 
next part of the setting (e.g., YEAR), then MODE to exit and move to 
the next menu. To skip a menu, press MODE to move ahead.
If you make a mistake, press the MODE button repeatedly to 
cycle back around to the error, then make the correct entry. 
NOTE: DATE and TIME must be set before you can access any 
other programming menus.
Setting Date
1.  Press the MODE button repeatedly until the words SET and 
DATE appear in the upper area of the display.
2.  Press the + or – buttons to enter the current Month.
3.  Press the ENTER button when the Month is correct to save the 
setting. The screen advances to current Date.
4.  Again press the + or –  buttons to enter the current Date, 
followed by the ENTER button.
5.  Repeat to set the correct Year.
6.  Press the MODE button to exit and advance to setting the time.
Wiring Diagrams
9.   Insert the wire ends under the proper terminal plates (see 
wiring diagrams elsewhere on this page) and tighten the 
screws rmly. 
10. Connect ground wire to grounding terminal at bottom of enclosure.
11. Replace the plastic insulator on the retaining post.
12.  Remove the battery case by sliding it down as shown by the 
arrows, then install 2 AAA alkaline batteries. Make sure the 
batteries are pointing in the direction shown.
13.  Verify that the display is ON to make sure the batteries are OK.
   If the display shows scrambled information, press the RESET 
button to clear it up.
14. Apply power to the Time Switch.
IMPORTANT: Press and hold the ENTER button, then press the 
RESET button. The screen will ash 12:00 AM, and timer status 
is Manual Mode.
NOTE: You must reset the time switch using this procedure 
whenever you change the jumpers.
The Time Switch is now ready for programming.
5.   Mount the enclosure in the desired location using the 3 mounting 
holes provided.
Position at eye level if possible, providing space to the left of the 
enclosure for the cover to swing open fully, as shown.
6.  Replace the mechanism in the enclosure.
7.   Lift the left side of the plastic insulator off the retaining post and 
pivot it up and away to expose the terminal strip.
8. Strip the supply and load wires to 1/2”. Use #18 - 
#10 AWG wires, rated at least 75°C - COPPER 
conductors ONLY.
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