Universal Bypass Switch Unit
UNB
Operation Manual
UNB2357E / Page 5 (34)
1. General
The Static bypass switch SBS is available for power ratings
between 5 and 40 kVA.
Typical applications are for use in UPS systems designed with
an input side rectifier, battery-circuit and on the output side
inverters or PWS.
The STATIC BYPASS SWITCH SBS is used for interruption
free switching between two AC-sources (usually inverter and
substitute-mains input) and is intended for the operation for
both inverter type ranges UNV and PWS. Consequently AC-
consumer can be driven without interruption, if one of the
two power sources fails.
The STATIC BYPASS SWITCH SBS is in a ready to connect-
configuration designed 19“-unit with reverse side preinstalled
high voltage connection terminals. The operation and
indication elements as well as the plug in connections for the
data-interface are integrated in the front plate of the unit.