B400R 1-3kVA User Manual
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3. Introduction
The B400R Series is an uninterruptible power supply incorporating online double-conversion
technology. The UPS’s flexibility to handle an array of network devices makes it the perfect choice
to protect your LANs, servers, workstations, and other electrical equipment.
The double-conversion principle eliminates all mains power disturbances. A rectifier converts the
alternating current from the mains to direct current. This direct current charges the batteries and
powers the inverter. On the basis of this DC voltage, the inverter generates a sinusoidal AC voltage,
which permanently supplies the loads.
Computers and periphery are thus powered entirely by the mains voltage. In the event of power
failure, the maintenance-free batteries power the inverter.
This manual covers the UPS listed as follows. Please confirm whether it is the model you intend to
purchase by performing a visual inspection of the Model No. on the rear panel of the UPS.
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