Features Fault tolerant design, even if the control line breaks, the relay will not move. Four mounting bolt holes are available. The operating voltage of the module is 5V, 12V, 24V to choose from. Humanized interface design, all interfaces can be connected directly via the connection cable, very convenient. Adopt patch optocoupler insulation, strong driving ability, stable performance. The trigger current is 5 mA. Each path of the module can be triggered by a jumper setting through the high level or low level. Power indicator (green), status indicator for 4-way relay (red). Specification: Weight: 18g/0.6oz Common interface load: AC 250V/10A, DC 30V/10A Module size (L x W x H): 50 x 26 x 18.5 mm. Bolt hole: 3.1 mm; 44.5 x 20.5 mm (spacing). Voltage: 5 V, 12 V, 24 V (optional). Module interface: 1. DC+: connected to the positive pole of the power supply (voltage is required for relay, 5V, 12V and 24V for selection) 2. DC : Connect to the negative pole of the power supply. 3. In: control relay for high or low level suction. Relay output terminal: 1. NO: Relay switching interface, relay suction front suspension, suction and COM short circuit. 2.COM: Common relay interface 3.NC: relay opener interface, relay suction and COM short circuit, suction distance. High and low level trigger selection terminal: 1. When the jumper is connected to low short circuit, it is triggered by low level; 2. High level is triggered when jumper is connected to high short circuit; Package list: 1 x relay module. Package List