Uninterruptible Power Supply APC Back-UPS BX 1200VA (FR):The worst thing that can happen to you when you work on a computer is a power outage a few seconds before you wanted to save your work. The unsaved work is irretrievably lost, and you have to start all over again. Such tragic scenarios can be averted by the APC Back-UPS BX 1200VA (FR) replacement backup source. This hardware is practically a battery reservoir that powers all types of electronics. The APC Back-UPS BX 1200VA (FR) UPS battery backup has the Line interactive design approach. Off-line is the simplest form when power fails, since it connects to the battery and disconnects from the mains power. The line interactive UPS enhances the simpler off-line version of voltage regulation to guard against dangerous surges travelling along data lines. APC Back-UPS BX 1200VA (FR) Backup Power Supply Key Features Backup power supply type: Line interactive Actual performance: 650 W At a 100% load, the UPC will work for 1 min 6 sockets (C13), as used for monitors, printers, or amplifiers A key attribute is the UPS run time. This depends on the power consumption of the connected devices – for example, at half-load (50%), the run time will be three times longer. The load of the UPS defines the operating time, which at full load (100%) is 1 min and at half-load, its 5 min. It is therefore necessary to estimate the power consumption of the connected electronics and it is a good idea to have some extra power left. The APC Back-UPS BX 1200VA (FR) specifies the apparent power as 1200, but in reality, the actual usage matches the value of 650 W.