Is it possible to install one common RCD in the shield instead of three separate ones?
Please tell me, one electrician tells me that it is necessary to put an RCD on a dishwasher, a washing machine and an air conditioner, for a total of three! Another says that you can put on the shield only one RCD on 25A? Can I do one RCD in the shield? There are suspicions of a divorce.
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Hello! It is possible so and so. Just when you have installed individual RCDs for each equipment, it is easier to understand which one is faulty (a certain RCD in the dashboard will work). And if you put a general protective shutdown device on the input, in case of failure of the dishwasher, the entire power line will turn off and it is more difficult to find which particular equipment is faulty. In this case, it will be possible to find the fault by the elimination method.