5V/12V/24V 4-way relay module with optical coupler isolation to support high and low level trigger expansion board

product description:

Module description:
1, the module uses genuine high-quality relay, 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 is available in 5V, 12V, 24V;
4. Each channel of 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), 4-way relay status indicator (red)
7, the interface design is user-friendly, all interfaces can be directly connected through the terminal block, very convenient
8, module size: 73mm * 50mm * 18.5mm (length * width * height)
9, with 4 fixing bolt holes, hole 3.1mm, spacing 67mm*44.5mm

Two module interface:
1. DC+: Connect the positive pole of the power supply (the voltage is required by the relay, there are 5V.9V.12V and 24V selection)
2, DC-: connected to the negative pole of the power supply
3. IN1-IN4: According to the setting of each way, the corresponding relay can be controlled by high or low level.
Relay output: 12-line interface, all interfaces can be directly connected to facilitate user access
1. NO1--NO4: The relay normally open interface, the relay is suspended before the suction, and the short is connected with COM after the suction.
2, COM1--COM4 relay common interface
3. NC1--NC4: The relay normally closes the interface, and the relay is shorted to COM before the suction is closed.

High and low trigger selection:

1.S1-S4 are the high and low level trigger selections of relays 1 to 4 in sequence;

When 2.com is shorted to low, the corresponding relay is triggered by low level, and when com is shorted with high terminal, it is triggered by high level.