[ARC5] Protecting a High Current Switcher Supply

[David Stinson]

I'm fiddling around with my new 24 VDC 2000 watt power supply.
It's an Astec VS3-D6 series dual switcher with two combinable 
42 amp outputs.  It was originally designed to run a CO2 laser.
I haven't used switchers at this power level before and I don't
want to destroy the thing through my ignorance.  
Going to be running big dynos with this beast.  
I don't know how it will react to inductive loads,
especially the surge at turn-on and any back EMF at turn-off.  
Any of you engineers have insights?  
Do I need 100 amp protection diodes across the outputs?
Snubber across the dyno start relay contacts?

By the way- this thing is pretty cool.  
115 volt AC input to a circuit that supplies 
385 volts at up to *8 AMPS* to the two 24 volt switchers.  
           Woof! 
Don't know why they didn't go 220 VAC input, since I don't know
of a normal 115 VAC service that can deliver 3000+ watts.
The three big fans in the thing run off the 24 volts it produces.
The fans will continue to run at full speed for about 6 seconds
after the supply is unplugged.  
Found it on the Bay for $200.  Weighs 17 pounds.
I think it's magic... :-).

73 Dave S.