James M. Daley, P.E.


Lighting and Lighting Controls February 18, 2003

Transfer Switches: Open or Closed?

What factors should engineers consider when deciding between closed- and open-transition switches, or three-pole vs. four-pole transfer switches? How about insulating buswork? In a Web-exclusive white paper, one of our February roundtable participants provides some insight.

By James M. Daley, P.E.