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For 415v,3phase,22kw rating of motor how to calculate MCCB rating
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Answer Posted / ucmed_king
Refer Manufacturer coordination chart for required rating and model of MCCB.
There is a thumb-rule though. Convert KW to HP (KW/0.75), multiply it by 1.5 gives you the rated current. Multiply it by 1.5 for breaker value.
Here's the coordinartion chart:-
http://powertips-elec.blogspot.in/2010/11/selection-charts-for-dol-starters-l.html
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