You should set the rated (DC) voltage (URdc) of the device to 2000V VDC.Voltage - Rated DC of 2kV controls this capacitor.With a voltage of 700VVAC, this capacitor operates.
PHE450SB5220JR06 Features
voltage - Rated DC of 2kV
PHE450SB5220JR06 Applications
There are a lot of KEMET PHE450SB5220JR06 applications of aluminum electrolytic capacitors.