For systems to operate, a rated (DC) voltage (URdc) of 630V must be applied internally.In order to power systems, you must have a rated (AC) voltage of 400V (URac).
R76PF1680GY00J Features
a rated (DC) voltage (URdc) of 630V an internal rated (AC) voltage (URac) of 400V
R76PF1680GY00J Applications
There are a lot of KEMET R76PF1680GY00J applications of film capacitors.