What selective RCD to put in the electrical panel after the 40A machine?
In the apartment shield, all groups are protected by difavtomatami. What selective ouzo to put in the floor board after the counter, if there is a 40A automatic machine before the counter. 3 phases? Currently costs 25A, the electrician at home refuses to change it one step higher, citing the correct installation. Thank.
Hello! Are you interested in what kind of power current or leakage current should be? Judging by the fact that you wrote about 25A, it is power. Your guesses are correct, and setting the RCD to 25A after the machine in 40A is fundamentally wrong. Previously, it was recommended that the RCD current be one step higher than the higher-level circuit breakers. Now it’s more often advised that the current of the RCD is equal to the current of a higher state machine, in your case 40A.
What exactly does he argue with "correctness"? So that the power contacts of the RCD are designed for switching and passing a current of 25A, but theoretically a current of 40A can flow there? As I understand it, the same machine automatically limits the power to your apartment?
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