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OPERATION, MAINTENANCE, AND INSTALLATION GUIDE
Zenith ZTS T-series automatic transfer
switches from 100 A up to 3000 A, are
designed for use in emergency or standby
systems to choose and to switch between
two power sources. See possible supply
phase scenarios on next page. You have to
define your own supply phase system -
reference Chapter 4 / Navigating menu /
Parameters: Power distribution systems.
Factory setting: 3 phases with neutral.
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2.4 Typical applications
Load
Source 1 Source 2
—
Fig. 2.2 Typical applications of
automatic transfer switches
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