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Auxiliary Switches - Siemens UL 489 Operating Instructions Manual

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8.2

Auxiliary switches

S3
S1
S2
Signaling switches
Terminals
S4
Wire no.
Internal
Wire no.
Terminals
S1, S2
Optional auxiliary switches
1
3
1
3
b
a
b
a
S1
S2
2
4
2
4
S3, S4
Optional additional auxiliary switches
1
3
1
3
b
a
b
a
S3
S4
2
4
2
4
8 – 2

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