Opening The Contactor Manually - Siemens NXAIR Operating Instructions Manual

Operating the contactor panel with panel width 600 mm

14.11 Opening the contactor manually

Preconditions
•
Contactor truck in service position or in test position
•
Contactor in CLOSED position
•
For electromagnetic interlock (optional):
•
Electromagnetic interlock deactivated
•
High-voltage door closed
•
Panel set to local control
•
Double-bit key available
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NOTICE
Conflicting operation
The requirement of setting the panel to either local or remote control prevents
operating the panel locally and centrally at the same time.
For operating the contactor manually, set the panel to local control, for
example by switching the local-remote switch to LOCAL position.
INFORMATION
Unexpected switching noise and vibration
Operating the contactor causes a short loud noise and low vibration.
Expect switching noise and low vibration from inside the contactor.
INFORMATION
Manual operation of the contactor is limited to manual opening of the contactor.
Manual closing of the contactor is not possible.
INFORMATION
Contactor truck version with mechanical closing latch
Opening the contactor also opens the closing latch.
NXAIR / ≤ 40 kA
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