Wiring 3 phase switch for 2 phase power
In article , DoN. Nichols says...
From the 2002 NEC
...must open only as many motor circuit conductors as
may be necessary to stop the motor,...
This means that my earlier circuit to reverse a 220V
single-phase motor with a single three-pole double-throw center off
switch would be legal, as long as there was a disconnect provided
(which in my case would have been the twist-lock power connector near
the lathe).
But then again, that was then. This OTOH would be 2004 so
to be absolutely certain that code book should be inspected.
Jim
==================================================
please reply to:
JRR(zero) at yktvmv (dot) vnet (dot) ibm (dot) com
==================================================
|