What automatic machine should I put at the entrance to the apartment, if on the AV platform at 63A?
Hello. Please tell me, in the shield on the site, the main automatic machine of the apartment is at 63A. What is the value of the introductory machine needed in the apartment, so that after it you can put a voltage relay and several groups with an RCD in each? Thank.
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First of all, you need to pay attention to the power cable that goes to the machine on the site and the cable that goes to your apartment. If this cable can withstand a load of 63 A, then in the apartment at the same rating and put the machine. A higher rating is useless, since at a load above 63 A, the machine on the site will turn off. Smaller face value - you will limit yourself in consumption.
And if the cable does not withstand the load, then you need to put the machine, the value of which will be acceptable for the cross section of the input cable. And it will also be necessary to replace the machine on the site with a lower rating, if the cable does not withstand such a load. Copper cable with a cross section of 16 sq. Mm - automatic 63 A, copper cable 10 sq. mm - automatic machine no higher than 50 A, copper cable 6 sq. mm - automatic machine no higher than 32 A.