Siemens NXAIR M Operating Instructions Manual page 222

Panels with motor operating mechanism control
Instruction label on high-voltage door:
In addition to these instructions, an instruction label on the high-voltage door informs about proper handling
of the racking crank for moving the withdrawable circuit-breaker.
Fig. 372: High-voltage door:
Preconditions

Withdrawable circuit-breaker in service position

Circuit-breaker in OPEN position

Panel set to local control

Control door open

Double-bit key for selecting racking mode inserted and access mode indicator shows "H"
222
NOTICE
Maloperation
All interlocks are only released when the withdrawable circuit-breaker is in a stable
end position.
Rack the withdrawable circuit-breaker absolutely until end position.
NOTICE
Maloperation
The panel automatically blocks electrical racking when the control door is open.
To prevent accidentally blocking access for electrical racking by opening
the control door, padlock the control door immediately after closing it.
instruction label about
operation of racking crank
NXAIR M 139-2021.9 / 07