4 Channel Relay Module High Low Optocoupler 12V

Module description:

1, The module uses genuine high-quality relays and parts, the maximum load of the normally open interface: AC 250V/10A, DC 30V/10A;

2, Using patch optocoupler isolation, strong driving ability, stable performance; trigger current 5mA;

3, The module working voltage has 5V-12V-24V

4. The module can be triggered by a jumper to set a high level or a low level;

5, Fault-tolerant design, even if the control line is broken, the relay will not move;

6, Power indicator (green), Relay status indicator (red)

7, The interface design is user-friendly, all interfaces can be directly connected through the terminal block, very convenient

8, With 4 fixing bolt holes, hole 3.1mm

Module interface:

1. DC+: Connect the positive pole of the power supply (the voltage is required by the relay)

2, DC-: connected to the negative pole of the power supply

3, IN: can control the relay to pull high or low

Relay output:

1. NO: The relay normally open interface, the relay is suspended before the suction, and the short is connected with COM after the suction.

2, COM: relay common interface

3. NC: The relay normally closes the interface, and the relay is shorted to COM before the suction is closed.

High and low trigger selection:

1. When the jumper is shorted to LOW, it is triggered by low level;

2. When the jumper is shorted to high, it is triggered by a high level.