Metric KN-1101TS is a 1 kVA / 800 W online double-conversion uninterruptible power supply with integrated battery and IEC output. Rated for door-automation duty at 120 W it provides 30 minutes of backup for one to five doors, or 60 minutes for one to two doors, ensuring continuous operation of automatic entrance systems during grid failure. Suitable for automatic-door controllers, small control panels and other critical low-power loads.