USER MANUAL - OPTIMA RT10 6K/10K-UL
VER.2106.21-One (ENG)
23
(UPS + ISOTX) : 1 x 220VAC
To provide 1 output in 220Vac able to supply 100% of total UPS power, 2 individual 120Vac outputs must be connected in
series by jumpers in terminal blocks (N1-L2) as indicated in below figure.
In case of 3 UPS, third UPS must be connected following same principle.
IMPORTANT:
It is recommendable all output neutral lines are connected directly without breakers. It is important neutral
lines are connected always since neutral is an important electrical reference for all UPS of the parallel system. In battery
mode the lack of connection of output neutrals could generate synchronization errors between UPS. In case neutral lines
are connected through breakers, there is a possibility of a wrong operation of breakers that forces error states.