Siemens NXAIR Operating Instructions Manual page 176

Operating the contactor panel with panel width 600 mm
Compare the two coding symbols on the rear side of the low-voltage plug connector and on
the top side of the operating mechanism box of the contactor truck. The symbols must be
identical.
Fig. 315: Coding symbols on the low-voltage connector and on
If the coding symbols are identical, carefully plug on the low-voltage connector (2) from
above.
Otherwise insert a contactor truck with the proper coding symbol before plugging on the
low-voltage connector.
To secure the low-voltage connector, push the longitudinal fastener (3) of the coupling
upwards.
Fig. 316: Plugging on and securing the low-voltage connector
Close the high-voltage door.
Switch the auxiliary voltage on.
✓
The low-voltage connector is plugged on and secured by the longitudinal fastener.
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contactor truck
NXAIR / ≤ 40 kA
2
3
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