Apc easy ups on-line srv 6000va 230v high quality, double-conversion on-line ups designed for essential power protection needs even in the most unstable power conditions. includes: basic ups signalling rs-232 cable, cd with software, usb cable, user manual max configurable power (watts) : 6.0kwatts / 6.0kva output voltage note : configurable for 220 : 230 or 240 nominal output voltage efficiency at full load : 94.0 % output voltage distortion : 1 % output frequency (sync to mains) : 50/60 hz +/- 3 hz sync to mains other output voltages : 220 v, 240 v load crest factor : 3 : 1 topology : double conversion online waveform type : sine wave bypass : internal bypass (automatic and manual)