1/2/4/8 channel 5V12V24V relay module with optocoupler isolation support high and low level trigger expansion board

One module description:

1. The module adopts relays and normally open interface loads: AC 250V/10A, DC 30V/10A;

2. Adopting patch optocoupler isolation, with strong driving capability and stable performance; Trigger current 5mA;

3. There are three options for the working voltage of the module: 5V/12V/24V. Please choose the corresponding version according to the actual situation. If you are unsure, please contact our customer service

4. The module can be triggered by setting high or low levels through jumper wires;

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

6. Dual indicator lights, power indicator light, relay status indicator light

7. The interface design is user-friendly, and all interfaces can be directly wired out through terminal blocks, which is very convenient

8. Module size: 50mm * 26mm * 18.5mm (length * width * height)

9. There are 4 fixed bolt holes with a diameter of 3.1mm and a spacing of 44.5mm * 25mm

Two module interface:

1. DC+: Connect to the positive power supply (voltage according to relay requirements, available in 5V, 12V, and 24V options)

2. DC -: Connect to negative power supply

3. IN: The relay can be controlled to close at high or low levels

Relay output terminal:

1. NO: Relay normally open interface, suspended before closing the relay, short circuited to COM after closing

2. COM: Relay Common Interface

3. NC: Relay normally closed interface, short circuited to COM before relay closing, suspended after closing

High and low level trigger selection terminal:

When the jumper is short circuited to LOW, it triggers a low level;

When the jumper is short circuited to high, it triggers a high level.