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What is the maximum permissible load up to which a single phase connection can be used in domestic supply system?

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April 10, 2013 4:29PM

In North America the most common distribution for new homes is 200 amps. Services larger than 200 amps have to get written permission from the utility company. Along with approved drawings that have load calculation filled in as to the exact connected load. In my work career I have only installed one 400 amp service in a very large home.