For systems to operate, a rated (DC) voltage (URdc) of 400V must be applied internally.In order to power systems, you must have a rated (AC) voltage of 200V (URac).
R79MC2270Z340K Features
a rated (DC) voltage (URdc) of 400V an internal rated (AC) voltage (URac) of 200V
R79MC2270Z340K Applications
There are a lot of KEMET R79MC2270Z340K applications of film capacitors.