APC Easy UPS 3S 15 kVA 400 V 3:3 Double Conversion Online UPS with internal batteries – 25 minutes runtime. Output power capacity 15.0kWatts / 15.0kVA 400V 3PH 50 Hz. Nominal Input Voltage 400V 3PH 45 – 65 Hz. Two Included Battery Modules. Weight 4