Ran across this today

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Tulsa Electrician said:
When you did that how did you lable panel. By that I mean
120/240 high leg
no three pole connection.
Just seams like a bad idea to me.
However the feed thru lug may feed an additional panle with three phase loads.
I can see that if set side by side
Using a single feeder.
If so did you drop the netural to the second one. Assuming the feed thu lugs went to another panle.
Interesting set up.
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Are you asking me about what I described in post 19?
 
Yes I find it interesting. Would like to here about the install.
If you want of course. I like to see what other do for an additional tool in the tool box.
Thank you
 
Tulsa Electrician said:
Yes I find it interesting. Would like to here about the install.
If you want of course. I like to see what other do for an additional tool in the tool box.
Thank you
Click to expand...
I did not install that "specialty panel" it was ordered by mistake.

What I did need for my application was:

Main breaker being the service disconnect
branch breakers for some lesser loads, one did need to be three phase
feed through lugs to supply two larger three phase motors that needed more than a 100 amp breaker to assure holding during starting.

the two motors were 25 hp three phase - QO 3 pole breakers only go to 100 amps, but had ones in the past that won't hold while trying to start that motor, though a 100 amp time delay fuse will hold. The 200 amp feeder was tapped and hit 100 amp fused disconnects at each of the 25 hp motors.

Had I not needed the one three pole breaker in the panelboard I could have used it "as is" for the other circuits though.

Any other application with say a large three phase load and the rest of the loads being single phase could have possibly used this panel.
 
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