UPS Module 20 kVA for Modular UPS RM0606KVA / 4200W : Display: LCDInterface: RS-232, SNMP SlotBattery: 16pcs 12V7,5AHInput voltage range: 220V: 176~276VacFrequency: 220V: 40~60HzOutput voltage range: 220V: 220±2%VacWave form: : Sine WaveTransfer time: 0 msOverload capability: 105%~130% lasts for 10 minutes, 130% above or 1 minute.Protections:1. Auto re-starts when AC recovers2. Silence setup3. Automatic charging (offline charging)4. Battery low voltage protection5. Overload & Short circuit protectionGross weight: 34 kgNet weight: 31 kg