OK. I have not seen a controller vendor sell by them ratings. Everyone I've looked at sells by a voltage input & a wattage output, amps may or may not be listed, never the cap voltage.
A yescomusa search doesn't find the specs, its why I asked, and more than once.
I'm still looking for a BLDC 36V 20A controller, new or used. It needs an original label stating its rating.
There is an international border, a missing label will be a problem should a secondary inspection happen, common for exports from non-business.