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AKD 48A - Low Inrush Current of 4A | 27 Apr 2015 | |

AKD 48A - Low Inrush Current of 4A

The high voltage drive uses a "pre-charge" circuit to load the bus capacitors.  (The total resistance is 160 ohms).  With a incoming power supply of 480VAC, being switched on right at the voltage peak, we have:

480V * (Square root of 2) / 160 = 4.24A.  (In the manual, it was listed as 4.0A......)

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Michael Brown_455