Siemens NXAIR Operating Instructions Manual page 187

Operating the contactor panel with panel width 600 mm
Push the contactor truck into the panel as far as it will go.
To interlock the contactor truck with the panel frame at the bottom, lift the locking hook (3)
and pull the locking bracket (4) totally downwards until snap-in.
Fig. 336: Interlocking the contactor truck at the bottom
The contactor truck is now interlocked with the panel frame at the bottom. The locking
indicator at the locking bracket shows LOCKED.
Fig. 337: Contactor truck interlocked with panel frame
To interlock the contactor truck with the panel frame at the center, turn the two locking levers
to the inside.
The contactor truck is correctly interlocked with the panel as soon as both locking levers
latch tight inside.
NXAIR / ≤ 40 kA
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