To meet the requirement of the network system to the power, santakups has developed a new generation ups - bpro offline series. It adopts 32bits data-bus microprocessor with robust processing power that is capable of detecting and controlling quickly and accurately all movement of ups to ensure product high reliability. Owe to the use of the double-conversion circuit design, the power used by load is the pure sine wave power by stabilizing voltage and stabilizing frequency and noisy signals filter. Specificationú¦ model b500a/600a b1000a/1200a Max capacity(va) 500va(300w) 1000va(600w) Rated capacity 600va(360w) 1200va(720w) Input commerical power range 145vac-280vac Avr range 165vac-270vac Frequency 50hzía10% Output commerical power sine-wave Inversion simulated sine-wave Frequency commercial power supply:shared frequency with the commercial inversion state:50hzía0.5 Avr voltage range 220vacía10%(auto-sensing) Transfer time typical:5ms(including detection time) Protection overload ups automatically shutdown if overload exceeds 150% of normal value for 30 seconds and 180% for 3 seconds Tel/fax/modem no Short circuit ups output is cut off immediately or input circuit breaker protection Alarm battery back-up beeping sound every 4 seconds when the input is cut off Battery low voltage beeping sound every 1 seconds when the input is cut off Overload continuously beeping sound when overload Battery type sealed, maintenance-free lead acid Capacity (12v, 7ah)x1 (12v, 7ah)x2 Recharge time 8 hours to 90% of full capacity Back-up time typical 20 min(halfload) Battery protection automatic self-test, discharge protection