SUA2200RMXL3U APC Smart-UPS XL 2200VA RM 3U Batteries.

Output Power Capacity 1.75kW / 2.2kVA
Max Configurable Power (Watts) 1.75kW / 2.2kVA
Nominal Output Voltage 120V
Output Voltage Distortion Less than 5% at full load
Output Frequency (sync to mains) 47 – 53 Hz for 50 Hz nominal, 57 – 63 Hz for 60 Hz nominal