APC Easy UPS 3S 20kVA 400V 3:3 UPS for external batteries High-efficiency 3-phase UPS that features advanced product features, competitive specifications, and robust electrical design, making business continuity easy in the data center or electrical room. This is an exceptionally easy to install, operate, maintain, and service 20 kVA UPS, ideal for small and medium businesses. Includes dust filter and conformance-coated boards for harsh environments. This UPS is supplied without batteries, so you can easily customize the battery solution. Main Input Voltage 400 V 3 phases Product or component type Uninterruptible power supply (UPS) Other Input Voltage 380 V, 415 V Main Output Voltage 400 V 3 phases Other Output Voltage 380 V, 415 V Rated power in W 20 kW Rated power in VA 20 kVA Provided equipment Dust filter, Installation guide Range of product Easy UPS 3S Maximum input current 37 A Load power factor 0.9 leading to 0.9 lagging Input Power Factor at Full Load 0.99 Input voltage limits 304...477 V Network frequency 45...65 Hz Ambient air temperature for operation 0…40 °C Relative humidity 0…95 % non-condensing Operating altitude 0...3281 ft Ambient air temperature for storage -15…40 °C Storage Relative Humidity 0…95 % non-condensing Storage altitude 0.0000000000…14999.8 m Acoustic level 60 dBA Heat dissipation 900 W IP degree of protection IP20 Compatible Batteries- E3SBT4, E3SOPT007, E3SOPT008 Compatible Cables- E3SOPT016 Compatible Interface connections- E3SOPT002, E3SOPT003 Compatible Spare parts- LV429390, E3SOPT001, E3SOPT003