4 Channel 5V 2A Solid State Relay Module


A Solid State Relay is similar to mechanic relay where it can be controlled through a digital signal. Solid State Relay generate no noise, and has a much longer life span in compared to the traditional mechanic relay. This relay board is based on the Omron G3MB SSR relay which can control up to 2A at 240VAC. This is a 4 Channel SSR relay module, each relay channel has 3 separate teminals, NO (Normal Open), COM (Common), NC (Normal Closed).

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When the input logic voltage is applied to the coil, the NC will disconnect from the COM breaking the conductivity between the two. At the same time the NO will connect with the COM allowing conductivity between them. Depending on your wiring this will turn on or off the connected load.


  • Operating Voltage: 5V
  • Operating Current: 12.5mA
  • Maximum Load: 2A @ 240VAC


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