I've worked on products which used triple phase inputs for different sections of the product and the main power ON/OFF breakers were usually barred together as one gang switch. I also had off from one of those phases a motor which had it's own ON/OFF switch. And all the switches were marked as "I/O". And that product passed testing for UL-1950 and EN60950.
Not sure if that answers your question. Regards, Doug ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson: [email protected] Dave Heald [email protected] For policy questions, send mail to: Richard Nute: [email protected] Jim Bacher: [email protected] All emc-pstc postings are archived and searchable on the web at: http://www.rcic.com/ click on "Virtual Conference Hall,"
