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The equation that you are looking for is; amps when kilowatts are known. kW x 1000/1.73 x Volts x pf.45 x 1000 = 45,000/208 x 1.73 x pf. Power factor to use will be .9. 45000/ 324 = 139 amps.

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9y ago
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14y ago

78 amps per phase

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Q: How many amps per phase will a 45 Kw 380 volt unit use?
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