Are you sure they're start caps ? Some 3 phase motors can be run with a cap connected the right way, those are run caps. What I have seen is they are usually rated double the input voltage, like if it is 220 the caps are 440.

Per your other thread, if they were 115 volts and in series you had like 200 uF, not ridiculous. High, but plausible. Even then the voltage rating is not high enough. If in parallel then you had like 1,000 uF which is very high, is this like a 5 HP or something ? In any case a 115 V cap will not take the voltage.