1,The module uses relay, normally open interface maximum load: AC 250V/10A, DC 30V/10A. 2,SMD optocoupler isolation, strong driving capability, stable performance,trigger current 5mA. 3,Fault-tolerant design, the relay will not move even if the control line is broken. 4,User-friendly interface design, all interfaces can be directly connected through the terminal block, which is very convenient. 5,Four voltage to choose,separately are 3V 5V 12V 24V. Features: The module uses quality relay, normally open interface maximum load: AC 250V/10A, DC 30V/10A. SMD optocoupler isolation, strong driving capability, stable performance,trigger current 5mA. Fault-tolerant design, the relay will not move even if the control line is broken. Power indicator (green), relay status indicator (red). User-friendly interface design, all interfaces can be directly connected through the terminal block, which is very convenient. Four voltage to choose,separately are 3V 5V 12V 24V. Specification: Item Type:Relay Module Normal Open Maximum Load:AC 250V/10A,DC30V/10A Trigger Current: 5mA Voltage :DC3V 5V 12V 24V(Optional) Package List: 1 x Relay Module Module interface: Input 1, DCand: connected to the positive pole of the power supply. 2, DC-: connected to the negative pole of the power supply. 3, IN: low level control relay pull. Relay output: 1. NO: The relay normally open interface, the relay is suspended before the suction, and the short is connected with COM after the suction. 2, COM: relay common interface. 3, NC: relay normally closed interface, shorted to COM before the relay is sucked, suspended after suction. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin