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ABB OTM_C_21D Installation And Operating Instructions Manual page 11

Automatic transfer switch

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A U TO M AT I C T R A N S F E R S W I TC H , OT M _ C _ 2 1 D
Locking
Locking the electrical operation
The switch can be padlocked in any position,
causing that all operating modes and test
operations are disabled and handle cannot be
inserted. See below for operation:
1
Figure 8. Locking the electrical operation
Locking the manual operation
By default, the manual operation can
only be locked in position 0. The
handle can be padlocked by pulling
out the clip from the handle and
place the padlock on the handle see
Figure 9.
2
Ø5-6 mm
Figure 9. Locking the manual operation
3
4
Ø5-6 mm
11

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