DC12V Adjustable Signal Trigger Turn Off Delay Timer Relay Module 25s

DC12V Adjustable Signal Trigger Turn Off Delay Timer Relay Module 25s Description

DC12V Adjustable Signal Trigger Turn Off Delay Timer Switch Relay Module

Feature:

12V trigger delay normally open relay
module, repeatedly triggering effective.


Delay time can be adjusted by potentiometer(clockwise to reduce, anticlockwise to increase),
default 0-25 seconds, if you need more time, simply replace a larger
capacitance or potentiometer.


Power supply terminal has anti-reverse
diode for protection.


Trigger signal can be high level or low
level signals, suitable for industrial control, the module can be triggered
repeatedly.


It can be used in robotics, car lamp delay,
intelligent product development, automation equipment, PLC development,
intelligent home, burglar alarm delay, and development of electronic.

 
Specification:
Delay Time: T(S)=1.1*R(Ω)*C(f); e.g.
if capacitor is 47uf, resistor is 500KΩ, T=1.1*0.000047*500000=25.85sec.
Size:Approx. 67 x 16mm/2.64 x 0.62"

Working Principle:
1. Power on the module (12V or 5V) and relay
is energized immediately. N.O. terminal is connected to COM terminal.
2. Relay is dis-energized after 0 to 25
seconds. N.C. terminal is connected to COM terminal.
3. Relay keeps dis-energized until there is
an external trigger signal.
4. If there is always trigger signal, relay
will keep energized until trigger signal disappears, then dis-energized after 0
to 25 seconds. Now N.C. terminal is connected to COM terminal.

Package Includes:
1 x Timer Relay Module
Note:
Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.