What is the current rating of the secondary distribution box

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Unlike a traditional MCB, an SPNDB has a 125A current rating as a standard. These are available in five different sizes, with four, seven, ten, and sixteen single-pole outgoing ways. Most modern secondary networks are operated at AC rated voltage of 100–120 or 230–240 volts, at the frequency of 50 or 60 hertz. Operating voltage, required number of phases (three-phase or single-phase) and required reliability dictate topology and configuration of the network. The following electrical ratings are typical: As a result of locating power transformers and their close-coupled. In engineering, power or current rating refers to the maximum amount of current a piece of equipment can handle. This document is not intended as a substitute for a detailed study or operational and site-specific development or schematic plan. Your acceptance of the document is an acknowledgment that it must be used for the identified purpose /application and during the period indicated.

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