Only Russelectric offers a complete line of 30-cycle Transfer Switches (100A to 4,000A) for open- or closed-transition switching. Tested, listed, and labeled for 30-cycle closing/withstand ratings per UL Standard 1008, they dramatically simplify selective coordination of overcurrent devices in emergency/backup power systems for healthcare and other mission-critical facilities.
For more information:
www.russelectric.com/30-cycle.html