At 05:14 PM 1/9/2010, you wrote:
I recently came across a revised technical bulletin from square D ( <http://ecatalog.squared.com/pubs/Electrical%20Distribution/Safety%20Switches/Heavy%20Duty/3110DB0401.pdf>http://ecatalog.squared.com/pubs/Electrical%20Distribution/Safety%20Switches/Heavy%20Duty/3110DB0401.pdf )......
We would need to use method "D" with the three pole. Method "C" would break the negative, leaving it ungrounded.
Drake Chamberlin Athens Electric OH License 44810 CO License 3773 NABCEP TM Certified PV Installer Office - 740-448-7328 Mobile - 740-856-9648
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