In an online UPS, the batteries are always connected to the inverter, so that no power transfer switches are necessary. When power loss occurs, the rectifier simply drops out of the circuit and the batteries keep the power steady and unchanged. When power is restored, the rectifier resumes carrying most of the load and begins charging the batteries, though the charging current may be limited to prevent the high-power rectifier from overheating the batteries and boiling off the electrolyte. The main advantage of an on-line UPS is its ability to provide an “electrical firewall” between the incoming utility power and sensitive electronic equipment

The online UPS is ideal for environments where electrical isolation is necessary or for equipment that is very sensitive to power fluctuations. Although it was at one time reserved for very large installations of 10 kW or more, advances in technology have now permitted it to be available as a common consumer device, supplying 500 W or less.

Features of our online UPS

• 1KVA/2KVA/3KVA/6KVA Available
• True double-conversion
• Wide input voltage range (110-300VAC)
• Input power factor correction 0.98
• Generator compatible
• RS-232 communication port or mini slot for USB / RS-232 / AS400 /
• SNMP communication
• Smart battery charger design for optimized battery performance