Electrolytic question

[bob91343]

Electrolytic capacitors are a strange breed. They work best when operated near their voltage rating but have short lives at higher levels. Today's higher line voltages imply a need for the higher ratings.

Measure the voltage you have and add about 10% and you will probably be good to go.

I don't think using 600 V units will give you any real benefit unless you find the voltage to be dangerously close to 500 V.