Tripp Lite's new SmartOnline 3-Phase UPS Systems provide mission-critical equipment with the highest level of power protection available. Double-conversion on-line operation with zero transfer time to battery completely isolates sensitive equipment from every power problem on the AC line. SmartOnline 120/208V UPS Systems are ideal for protecting critical equipment in computing, networking or telecommunications environments. SmartOnline 277/480V UPS Systems are also ideal for heavy-duty industrial power distribution.