Ignoramus29580 wrote:

I have a question... I am a little tired of having output 3 phase
cables hard wired into the phase converter. I want to wire them nicely
using 3 phase breakers (which I have) and make 3 phase receptacles
attached to the phase converter. One would be for the 200 A DC welding
machine rated for 44 amps. Another would be for "stuff", unlikely to
exceed 5-7 HP. Right now I only have a 3 HP bench grinder tat is 3
phase, but that could change as time goes on.

What I would like some help on is selecting proper receptacles. I have
some cable with a "30 A 3 phase plug" (I cannot look at it at the
moment), so it would be nice for the bigger receptacle to be
compatible. Any suggestions? thanks

Three phase plugs, receptacles, and heavy electrical cabling are very expensive.
What I did originally was to cut in six receptacles on the sides of my phase
converter's enclosure box. However, later I wired the phase converter into a
wiring system, and now I run my 3 phase "bus" to six points throughout my shop.
These points terminate in 30A disconnect boxes. I locate 3 phase machines by one
of these points and use conduit and loose wire to connect them. In my shop, I
only use one machine at a time.

If you persist in using receptacles, I suggest you watch ebay until you can buy
a bunch from a quality manufacturer, all the same size and spec, and standardize
on that size.

GWE