♦Overvoltage protection (RJ11) for fax, modem and phone
♦CompuWatch software for shutdown, status messages and measurement values for all major operating systems (incl. Windows, Mac, Linux)
♦Compact design / without fan
2.2Principle of Operation
The UPS is connected to a shockproof socket between the public utility’s mains and the loads to be protected.
Under normal operating conditions, i.e. if PROTECT A. is supplied with mains voltage, the battery charger will ensure that the battery is always completely charged.
During this operating status, the loads connected to PROTECT A. are supplied with voltage via mains filters which provide effective protection against mains voltage peaks and
In case of sustained mains undervoltage or overvoltage within defined ranges, the automatic voltage regulator (AVR) further stabilises the load voltage. As a result, voltage fluctuations in the public utility’s mains are reduced to a level which is acceptable for the loads. This is performed without recourse to the internal energy storage, something which in turn has a positive effect on battery availability.
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Static bypass | switch |
Load
RectifierInverter
Battery
UPS Block diagram PROTECT A.
8