Features: The module adopts original quality relay, and the maximum load of normally open interface is AC 250V / 10A and DC 30V / 10A. SMD optocoupler isolation, strong driving ability, stable performance, trigger current of 5mA. Working voltage 5V 12V 24V for your choice. Setting the trigger by jumper, it support high and low level trigger. Fault-tolerant design, if the control line is disconnected, the relay does not operate. Specification: Maximum load of normally open interface: AC 250V / 10A, DC 30V / 10A Voltage: 5V, 12V, 24V (Optional) Module interface: 1. DC + : positive power supply (VCC) 2. DC- : negative power supply (GND) 3. IN: it can be high & low level control relay Relay output: 1. NO: normally open relay interface 2. COM: universal interface relay 3. NC: normally closed relay interface Package List: 1 x Relay Module 1、The module adopts original quality relay, and the maximum load of normally open interface is AC 250V / 10A and DC 30V / 10A. 2、SMD optocoupler isolation, strong driving ability, stable performance, trigger current of 5mA. 3、Working voltage 5V 12V 24V for your choice. 4、Setting the trigger by jumper, it support high and low level trigger. 5、Fault-tolerant design, if the control line is disconnected, the relay does not operate.