Controlling refrigerator compressor using arduino

To answer your question Yes! Will the regular relay do the job, no idea, the lack of information on the compressor makes this impossible to answer properly. Same for if not what should I have. You have the start of a very interesting question but more details are needed and what is it going to do. Does the compressor need a starting relay or are you going to fake it, assuming single phase. Add the additional information and you will probably get several good answers.

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