4 Channel 12V Relay Module with Optocoupler

This is an easy-to-use 4 channel relay board that works on 12V. Use it to control four 240V power appliances directly from microcontrollers or low voltage circuits. Perfect for switching 240V appliances – lights, fans, etc, and even high power motors at lower voltages.

The board uses high-quality relays, which can handle a maximum of 7A/240 V AC or 7A/24V DC. Each relay has all three connections – Common, Normally Open, Normally Closed brought out to 3 pin screw terminals which make it easy to make and remove connections. The board has a power indication and a relay status LED to ease debugging. The board can accept inputs within a wide range of voltages from 4V to 12V.

Power input and relay control signals are brought to header pins on the board. Hence, the board can be easily interfaced with our development boards using our female-to-female jumper wires.