5V 1 Channel H/L Level Trigger Optocoupler Relay Module For Arduino

This is a high-quality relay module featuring on-board SMD optocoupler isolation. You can set the trigger level (high or low) via a jumper. It has a fault-tolerant design, so even if the control line breaks, the relay won't operate. It uses terminal lead connections. The power indicator is green, and the relay status indicator is red. The maximum load is AC 250V/10A or DC 30V/10A. The trigger current is 5mA, and the working voltage is 5V. The module size is 50 x 26 x 18.5mm (L x W x H), and it has four mounting bolt holes with a diameter of 3.1mm. Module Interface: - DC+: Positive power supply (VCC) - DC-: Negative power supply (GND) - IN: Controls the relay with high or low level Relay Outputs: - NO: Normally open relay interface - COM: Common interface for relays - NC: Normally closed relay interface High and Low Level Trigger Options: - Low level trigger when the jumper is connected to the LOW pin - High level trigger when the jumper is connected to the HIGH pin

Using this relay module is easy. First, connect the DC+ to the positive power supply and DC- to the negative power supply. Then, connect the IN terminal to the control signal which can be either high or low level. For the relay outputs, connect your load to the appropriate terminals (NO, COM, or NC) according to your needs. You can set the trigger level by adjusting the jumper. Connect it to the LOW pin for low level trigger and to the HIGH pin for high level trigger. When using this module, make sure the power supply voltage is 5V and the trigger current doesn't exceed 5mA. Avoid breaking the control line as it might cause unexpected results. For maintenance, keep the module clean and dry. Check the connections regularly to ensure they are secure. If there are any signs of damage or malfunction, replace the module promptly.