Riello MULTI SENTRY Series - Page 34

MULTI SENTRY
SPTMSTD2T16EREN
32
UPS without variation of the neutral arrangements and with a separate bypass supply input
Remove jumpers between SWIN disconnectors and SWBY
UPS with galvanic isolation input common and separate bypass input
Remove jumpers between SWIN disconnectors and SWBY
UPS with galvanic insulation output and input with separate bypass
Remove jumpers between SWIN disconnectors and SWBY
Separate bypass on separated lines upstream:
Neutral of the input line and that of the bypass are joined inside the equipment, therefore they will refer to the
same potential. If the two mains supplies are different, it is necessary to use an isolation transformer on one of
the inputs.
Note: In all these three cases below, the neutrals feeding both rectifier and bypass inputs are different.
Assuming the UPS joins them together, ensure that earth connections is carried out either on bypass line neutral
or rectifier line neutral, not on both!