Features 1.The module uses high-quality 30A relay, the maximum load of the normally open interface: AC 250V / 30A, DC 30V / 30A 2.Adopt SMD optocoupler isolation, strong driving ability, stable performance, the trigger current is 5mA 3.The module working voltage is 5V, 12V, available for choice 4.The module can be set to high or low level trigger by jumper 5.User-friendly interface design, all interfaces can be directly led out through terminal blocks, which is very convenient Specification Item Type: Relay Module Optional Style: 5V, 12V Relay version Quiescent Current Maximum current Trigger current 5V 5mA 190mA 2-4mA 12V 5mA 80mA 2-4mA Module Interface Description: 1.DC +: Module DC power supply positive (positive voltage of trigger terminal) 2.DC-: Module DC power supply negative (trigger terminal voltage negative pole) 3.IN: signal trigger terminal (default trigger voltage is the same as power supply) 4. High / low level trigger mode selection, as shown in the figure, when the jumper is connected to the L terminal, the IN terminal is a low level trigger, and when it is connected to the H terminal, the high level trigger 5. Normally closed end (NC): normally closed end of relay 6. Common terminal (COM): relay common terminal 7. Normally open (NO): relay normally open Package List 1 x Relay Module