Siemens NXAIR M Operating Instructions Manual page 67

Preparing the operating shaft for the feeder earthing switch
Make sure that the coupling pin of the operating shaft for the feeder earthing switch at the
withdrawable circuit-breaker and the coupling in the switching-device compartment are in
vertical position.
Fig. 107: Coupling pin of the operating shaft
If required, put the coupling pin of the feeder earthing switch operating shaft in vertical
position using the operating lever.
Fig. 109: Operating the feeder earthing switch operating shaft
Interlocking the service truck with the withdrawable circuit-breaker at the panel
139-2021.9 / 07
for the feeder earthing switch
CAUTION
Maloperation
Interlocks placed at the panel front prevent being injured when moving the
withdrawable circuit-breaker into the panel.
Make sure the service truck is interlocked with the panel before moving
the withdrawable circuit-breaker into the panel.
Observe the notes and the operating instructions on the service truck.
Operating the circuit-breaker panel
Fig. 108 Coupling of the feeder
NXAIR M
earthing switch in the
switching-device
compartment
67