Erbach VM 50/B-TC1 Power Supply Unit

Got this Erbach VM 50/B-TC1 power supply unit for sale. It's a heavy duty piece of German engineering, rated for 400V AC input and puts out 520V DC at 50A. It's got some scuffs on the casing from being moved around but the labels are still clear. Not sure what it came out of exactly but if you need high voltage DC power this is the real deal. Sold as is since I dont have a way to test it at these voltages.