Liebert gxt4 is a true on line ups that delivers continuous high quality ac power to it equipment with no break when transferring to battery it protects equipment from virtually all power disturbances due to blackouts brownouts sags surges or noise interference for robust protection from 500 10 000va these liebert gxt4 ups models provide industry leading features in a compact design on line design means zero transfer time when utility power fails your critical load remains suppor