On 5 February 2016 at 22:22, Todd                      Zuercher
<zuerc...@embarqmail.com> wrote:

> It is a gang router (didn't start out as one), and is connected to 9 
> different single phase 110v breakers. One for each of the six 15amp routers 
> plus 3 more for the control, and motion. (that stuff totals at most another 
> 15amps.)

I am not familiar with your local regs. I am not even qualified to
wire to my own local regs but:

One machine should have one power cord. The upstream breaker should be
sized for that power cord (or, conversely, that power cord should
match the breaker).
If for no other reason than to make it very clear that the machine is
off before working on it.

Then, internal to the machine, you should have power distribution and
thermal/overload trips for each spindle.

-- 
atp
If you can't fix it, you don't own it.
http://www.ifixit.com/Manifesto

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