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Service-Entrance switchboard has circuit breakers that sends the incoming high voltage from the transformer to different distribution switchboards around the building that goes to different power operating machines or appliances.

The service Entrance switchboard have large pumping circuit breakers since it has to do with large voltage. when electricity enter the service entrance circuit breaker it is at 480V + and when it goes into the service entrance switchboard it reduces the voltage to proper voltage for the building and sends it to the distribution switchboards.

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12y ago

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