I'm getting things lined up to install my vintage Jacobs windcharger, Its rated at 100 volts DC 140 volts max.

My charge controller will accept 150 volts ABSOLUTE maximum input.

Those two voltages are too close for comfort. What can I use to clamp the voltage on the windcharger so it never goes over say.. 130 or so volts?

Thanks

 

How much current is involved?

 

25 amps max