1 relay module with optocoupler isolation support high and low level trigger one relay expansion board 5V

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. The working voltage of the module is 5V

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. Power indicator light (green), relay status indicator light (red)
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, with options of 5V, 9V, 12V, and 24V)
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

3、 Technical parameters:
Relay version static current current trigger current trigger voltage (low) high
5V       5mA      190mA       2-4mA     0-1.5V        2.5-5V
12V      5mA      80mA2-4mA     0-4V         4.5-12V
24V      5mA      50mA2-4mA0-8V         8.5-24V

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.