Currently in the process of designing the main power switch for #Torquee.
It needs to switch the 48V battery voltage at up to 500A.
I'll be using a EV200/GV200 contactor for this.
But I need a 12V supply and pre-charge circuit so I don't explode the contacts when trying to instantly charge ~8mF of input capacitance of the 2 #startergenerators to 50V in microseconds :D
So I'm designing this PCB, that'll screw on top of the cable lugs and connects to GND and actual switch input.
Maybe I'll test the thermal performance some more, if I'm bored. I'd like to find out which factors influence the heat loss the most. It's not only torque or phase current, it seems a bit more complex.
But from all the available data at hand: I'm pretty sure they are suited well for project #Torquee (an electric go-kart I'm currently building).
I mean, you can't pull that torque in a vehicle for long times anyways, at some point you're either at v_max or need to decelerate for the next turn :D
LeoDJ