12V DC Timer Relay Switch Module with LCD Display - Delay & Cycle Timer for Automatic Control - Ideal for Home Automation, Lighting, and HVAC Systems
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Description
Specification: Operating Voltage: DC 12V Load Capacity: AC 250V 10A; DC 30V 10A 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. 52 x 16mm/2.04 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.
Features
Repeatedly triggering effective: 12V trigger delay normally open relay module, repeatedly triggering effective.
Adjustable: 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.
Trigger signal: Trigger signal can be high level or low level signals, suitable for industrial control, the module can be triggered repeatedly.
Applications: 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.
Protective function: Power supply terminal has anti-reverse diode for protection.
