SHYTMV Single-Channel Relay Module 3.3V 5V 12V 24V with High and Low Triggering

Module 1. The module uses a genuine quality relay; the maximum load of the normally open interface is AC 250V/10A, DC 30V/10A; 2. It uses double optocoupler isolation, strong driving capability, and stable performance; triggering current is 5 mA; 3. Each channel of the module can be triggered by a high or low level jumper; 4. Fault-tolerant design: even if the control line is broken, the relay will not move; 5. Power indicator (green), 1 relay status indicator (red); 6. User-friendly interface design: all interfaces can be connected directly via the wiring terminals, which is very convenient. Module Interface: 1. DC+: Connect to the positive terminal of the power supply (relay voltage 5V). 2. DC-: Connect to the negative terminal of the power supply. 3. IN: The relay can be controlled by a high or low level. Relay Output: 1. NO: Normally open interface of the relay. Before the relay is free, it will be shorted to COM after activation. 2. COM: Common interface of the relay. 3. NC: Normally closed interface of the relay. Before the relay closes, it is shorted to the COM terminal. High and low level trigger selection: 1. S1 is the high and low level trigger selection for relay 1; 2. When COM is shorted to ground, the corresponding relay is triggered by a low level. When COM is shorted to high, it is triggered by a high level. Note: 1. Due to differences in display and lighting, the actual color of the item may be slightly different from the color shown in the pictures. 2. Please allow a measuring deviation of 1 cm/0.39" to 3 cm/1.18" due to manual measurement.