Voltage and frequency fluctuations, surges, sags, power cuts are likely to seriously damage your sensitive equipment. These problems occur every day all over the world and are more frequent in areas with poor power supply. The ts series are the ideal solution to protect your small office and home office systems (soho) as well as other electronic devices, which are needed for daily use. Ts is not only the great value for the money, but it is also very user friendly and meets different requirements for a variety of users. Most of the ups systems can do the job by using their built-in batteries. However, the batteries would soon deteriorate if used often. This is where the opti-ups ts series rise above the others. With its wide range avr, battery usage is limited to very extreme conditions while normal voltage fluctuations are easily controlled by the ups. This ensures a stable work of your equipment in an unstable power environment. When things get tough on the utility source, the ts series are there to give the right battery back-up. Its your insurance to continuous performance and peace of mind. Features: line interactive design. Boost and buck avr (auto voltage regulation). Fully digitized microprocessor control. Energy saving function (ups green mode). 50 / 60 Hz frequency auto sensing and selection. Cold start function (dc power on). Lightning and surge protection. Short circuit and overload protection. Advanced battery management (abm technology). Smart rs232 communication port. Tel / modem / lan surge protection. Automatic charging when ups is off. History record of power failure events. Back up, on-line, battery status, power status display by software. Scheduled shutdown and reboot. Specifications: model name: ts1250b. Topology: line-interactive. On-battery output waveform: simulated sine wave. Input: maximum capacity: 600w. Nominal input voltage: 110/120/220/230/240vac. Nominal input frequency: 50hz / 60hz auto sensing. Input voltage range: rated voltage +/- 25%. Input short protection: ts1250b(1x0) circuit breaker; ts1250b(2x0) fuse. Ac line-in plug: 110/120v models: nema 5-15p. 220/230/240v models: depends on local standards. Output: nominal output voltage: 100/110/120/220/230/240vac. Output voltage regulation: rated voltage +/- 5%. Transfer time (typical): 4 ms. Start on battery: yes. Auto restart: yes. Automatic voltage regulator (avr): when the input voltage is 9 % to 25 % lower than the mains electricity, avr raises the voltage by 15 % automatically. When the input voltage is 9 % to 25 % higher than the mains electricity, avr lowers the voltage by 13 % automatically. Communications interface: communication port 1): rs232. Data line surge protection: rj11 / rj45. Protection: surge energy rating: 460 joules(iec outlets models) / 265 jouies(nema outlets models). Overload protection: ups automatic power off if overload exceeds 110% of nominal at 60 seconds and 130% at 3 seconds. Short circuit: ups output cut off immediately or input fuse protection. Battery: user replaceable batteries: 12v/7.2Ah x 2. Typical backup time 2): 40 min. Full load runtime: 3 minutes. Half load runtime: 12 minutes. Recharge time to 90%: 6 hours. Protection: auto discharge protection. Advanced warnings / diagnostics: front panel leds: power status / ac mode / battery mode / battery fault / overload. Audible alarms: battery mode / battery low / overload. Dimensions (lxwxh): physical: 15x5.1X7.5 Inches / 382x130x192 mm.