Locking; Locking The Electrical Operation; Locking The Manual Operation - ABB OTM C 21D Installation And Operating Instructions Manual

Automatic transfer switch
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3. Description

3.4 Locking

3.4.1 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

3.4.2 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 8. Locking the electrical operation
Ø5-6 mm
Figure 9. Locking the manual operation
1SCC303015M0201 l ABB Installation and operating instructions, 34OTM_C_21D rev. B
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4
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