General Operation; Position Indication - ABB Zenith ZTX Series Operation, Maintenance, And Installation Manual

Automatic transfer switches
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3. General operation

3.1 Position indication

Contact movement and position indica-
tion is indicated in the figure below, open
transition I - II (or II - I).
ZTX I - II
Fig. 3.1 Contact movement / position indication:
Type ZTX, Open transition
27

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