I should know this, when you face the motor looking at the shaft it will turn CW when it is wired ABC or Black Red Blue, for 120/208 or 240 3phase BUT BUT you had best not trust the color code, the code no longer requires colors, and when installing motors we always test. There are testers that you clip on and they will test rotation,of the line. or they will test the rotation of the motor you connect and spin the motor and it will give you the correct rotation of the leads. Darryl
--- On Sat, 8/21/10, Marco Mangelsdorf <ma...@pvthawaii.com> wrote: From: Marco Mangelsdorf <ma...@pvthawaii.com> Subject: [RE-wrenches] phase rotation wiring To: "'RE-wrenches'" <re-wrenches@lists.re-wrenches.org> Date: Saturday, August 21, 2010, 9:02 PM There are two situations one can find when working on three-phase AC systems: a clockwise or counterclock phase rotation. Is it correct to assume that a CW rotation would be color-coded (for 120/208V) from left to right black-red-blue while CCW rotation would be, say, red-black-blue? Or whether it’s a CW or CCW phase rotation, is the color coding always going to be black-red-blue (again for 120/208)? Thanks, marco -----Inline Attachment Follows----- _______________________________________________ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
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