APC Symmetra LX 8kVA Scalable to 8kVA N+1 Rack-mount, 208/240V. Output power capacity: 8 kVA, Output power: 6400 W, Input frequency: 50/60 Hz. Battery technology: Sealed Lead Acid (VRLA), Typical backup time at full load: 5.9 min, Typical backup time at half load: 17 min. Certification: CSA,FCC Part 15 Class A,UL 1778. Weight: 392.9 lbs (178.2 kg). Interface: DB-9 RS-232, Smart-Slot, Output connections: 1x 4-wire 2x NEMA L14-30R 4x NEMA L5-20R, Dimensions (WxDxH): 18.6 x 27.1 x 22.5" (472 x 688 x 572 mm)