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How to wire twin timer

twin timer Voltage 100-240 volt AC input. Or 12-24 volt AC-DC input.. One shot or Repeat-cycle timer with dry NO NC terminals, connect any voltage to switch terminals.
One shot - apply power to timer and it turns on for set period of time and turns off. Reset by disconnecting power and then resume.
Repeat cycle has two time periods that turn on-off indefinitely until input power is cut.
For example a car alarm is a twin timer ... honk-honk-honk indefinitely until power is cut.
Time period ranges from .01 to 99.99 seconds/ or .01 to 99.99 hours.
Each time period can be same or different.
Timer starts when it receives power and stops when power is off. Then it restarts when power resumes.
For example you can set the twin timer to turn on for 10 minutes and off for 200 minutes. Mode A would be 10 minutes, Mode B would be 200 minutes.
Or ... turn on for 10 minutes and then turn on another circuit for 200 minutes.
You can control power to the twin timer using a 7-day timer for example, or another twin timer etc.
Set time period for Mode A and then set time period for Mode B
If seconds are chosen for time period A, then time period B must also be seconds.
Twin timer

Digital twin timer/ panel mount

PV shows the time left in the count up for Mode B... so there is .78 seconds left before it switches to Mode A
SV shows 2.99 ... which is the set time I choose for Mode B
When 2.99 seconds ends, Mode A set time will display.
Image shows the Inkbird twin timer.

Use this timer to control red nose on Rudolph reindeer. Set Mode A to 30 seconds and Mode B for 2 seconds. Rudoph's nose will blink on and off as long as power is applied to red nose and timer.
Buy:
Twin timers at Amazon
Sestos relay timer
Migro assorted timer
Resource:
Twin timer manual
Inkbird twin timer

Repeated ON Delay using digital twin timer

How to wire twin timer
Twin timer has two time periods that turn on-off indefinitely.
Each time period can be same or different.
You set time period for mode A and then set time period for mode B
Time period ranges from .01 to 99.99 seconds/ or .01 to 99.99 hours.
If seconds are chosen for time period A, then time period B must also be seconds.

Suppose you want light to turn on with switch, and want a buzzer to sound 20 minutes later.
Then you want buzzer to turn OFF after 30 seconds.
Then you want buzzer to sound again 20 minutes later... and then turn OFF after 30 seconds.
Set twin timer for hours. Mode A is set for 00.30 and Mode B is set for 00.03
Operation sequence:
Move single-pole switch to ON position and shop light turns ON and remains ON until switch is turned OFF.
First delay begins for 20 minutes. When delay period expires, the buzzer turns ON for 30 seconds.
Second delay ends after 30 seconds and Buzzer turns OFF. First delay period begins again
With a twin timer, the sequence keeps repeating until light switch is turned OFF.
Buy:
Twin timers at Amazon
sestos B3s

Panel mount one-shot timer

Precise digital control
Apply power, and normally open terminals turn ON for set time, and remain off until power is cut and applied again.
This can be operated with a Normally closed push button that applies continuous power to the timer mechanism. When the push button is pushed, it starts the delay time circuit for the set duration of time.
Time durations: .01 seconds to 99hour99 minutes (4.16 days)
Repeasts each time power is applied again.

1/2 Hp @ 120 Volt
3/4 Hp @ 240 V
100-240 volt AC/DC input terminals are separate from output terminals
Buy:
B3S one-shot timer
Resource
B3S timer manual
Options for Motor driven countdown timer

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