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Selection of the size of the UPS output circuit breaker

2022-11-02View Original

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I would like to ask: for a 10KVA UPS with 380V input and 220V output, what should be the current rating of the main circuit breaker on the output side?
Reply #22022-12-15
Rated power/(Rated voltage*Number of phases)=10000/(220*1)=45.5A

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