PVGFP [RE-wrenches]

[Eric Smiley]

>I have had success mounting a Square D ground buss kit to the load side
of a
>500A shunt.  I drill into the side and tap the hole with consecutively
a
>standard tap followed by a flat bottomed tap (specialized tap for holes
that
>don't go all the way through a block of metal).  I usually use at least
a 15
>position ground buss, to make it worthwhile.  The insulated base of the
>shunt provides isolation.

Siemens sells the isolated neutral buss they use in their 200 A fused
disconnect switches as an accessory. The height is a perfect match to a
500 A Deltec shunt. The large set screws are the same size and thread as
the bolts used on the shunt so a piece of buss bar can be bolted to both
and it looks tidy.
The only drawback is the neutral bus is designed for up to 4/0, meaning
it's fiddly getting extra flex 4/0 into the hole.


----------------------------------------------------------------------
Eric Smiley
Project Leader - BCIT Technology Centre
NE25-3700 Willingdon Ave. Burnaby, BC V5G 3H2
ph: (604)432-8657  esmiley at bcit.ca  www.tc.bcit.ca

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