Voltage Conversion from 120v to 220v

Discuss Voltage Conversion from 120v to 220v in the UK Electrical Forum area at ElectriciansForums.net

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SoonIWill

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Hi Gents,

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We will convert our shop voltage from 120v to 220v.We will replace the old transformer 75KVA-480v (208/120 V) by new one (400/230 V). The question is can I use the existed panel boards (see the information
below) or not?

see pic links please
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