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SEPARATE BYPASS INPUT (OPTIONAL)
THE “DI” (OPTIONAL) VERSION OF THE UPS SERIES HAS SEPARATE BYPASS AND INPUT LINES.
The UPS series with separate Bypass ensures a separate connection between the input and bypass lines.
The UPS output is synchronised with the bypass line so as to safeguard against incorrect voltage changeovers in the
alternate phases, in the event of automatic bypass or closing of the maintenance switch (SWMB).
ADDITIONAL INTERNAL BATTERY CHARGERS (OPTIONAL)
THE “AC” (OPTIONAL) VERSION OF THE UPS SERIES DIFFERS FROM THE STANDARD VERSION IN THAT
SOME ADDITIONAL BATTERY CHARGERS ARE USED INSTEAD OF THE BATTERIES.
This series of UPS must be used together with an external Battery Box and is suitable for applications requiring long
back-up times.
NOTE: A separate bypass line is supplied on this UPS version.
The additional internal battery charger cards are powered directly on mains power and have pseudo-sinusoidal wave
form absorption.
If the input switch is closed but the I/O switch is open (UPS switched off) the battery chargers operate
independently. Open the input switch (SWIN) to totally shutdown the UPS and the additional battery chargers.
AC Version
10 kVA 12 kVA 15 kVA 20 kVA
Nominal voltage
240 + 240 Vdc
Current in addition to that supplied
by the internal battery charger
6A@240Vdc
UPS weight
86kg 88Kg 96Kg 101Kg
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