Evi 10000va / 10000w rack mount online single phase ups - online double conversion, wide input voltage range (110 - 300 vac), input connection :terminal (l+n+g). input power factor: 0.99 (with pfc), output power factor: 1.0, transfer time : ac mode <->bat. mode 0 ms typical, inverter <-> bypass 0 ms typical. batteries: lead acid 16x7ah ( 192v), with external battery connector, charge current : 15a max, emergency power off function (epo), eco mode support, generator compatible, communication ports: usb, rs232, rs485 port, parallel port,emergency power off (epo), maintenance bypass dry contact (maint.) intelligent card slot,programmable dry contact port. optional: com port, battery temperature contact port (batt), programmable dry contact port (optional (4 input+4 output), smart battery charging design for optimized battery performance