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Kp66

Choosing Cable & Wire Size

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Hello

I choose a 5kw AC Motor , But I do not know how to select a right cable or wire for it??

Thank you

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If this was an American install i would refer you to the national electric code.  You need to follow your UK code.

The following might be how it would work out from the US NEC.

you would be taking into account and sizing the OCD (Over Current Device) for the motor.

starting here - https://learnmetrics.com/kw-to-hp-converter/  -- 5kW translates to 6.7 hp

then assuming three phase 460 power from here - http://www.electricalhelper.com/nec430-250.htm  -- 6.7hp rounded to 7.5 hp translates to 11 amp

looking to the cable ampacity chart here - https://media.distributordatasolutions.com/ThomasAndBetts/v2/part2/files/File_7437_emAlbumalbumsOcal20(USA)oc_1_g_nec31016pdfClickHerea.pdf turns out to 14 awg minimum.

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