I'm thinking of using industrial motor contactors at the output of a 3-phase electrical generator. An example here : CONTACTOR DATASHEET
The only difference / problem is that the electrical frequency of that generator is in the kHz (1-3) range (high-speed generator).
All the infos available for these industrial contactors are given for 50 or 60Hz but no mention of a maximum (or minimum...) frequency.
Would it have no influence at all as long there's a zero voltage crossing every now and then? Should I derate the current given for 50/60Hz somewhat? If so, what would be the physical explanation behind that?
Thanks for the feedback,