Manual Emergency Opening Of The Contactor - Siemens NXAIR Operating Instructions Manual

13.12 Manual emergency opening of the contactor

Preconditions
•
Contactor truck in service position or in test position
•
Contactor in CLOSED position
•
High-voltage door closed
•
Push rod available
Procedure
Insert the push rod through the actuating opening in the high-voltage door and press it to the
frame as far as it will go.
Fig. 199: High-voltage door with
✓
The contactor is open.
110-0134.9 / 14
Operating the contactor panel with panel width 435 mm
NOTICE
Maloperation
Manual emergency opening of the contactor is only permissible in case of
emergency (for example the electrical malfunction of the contactor).
Perform the following activities only in case of emergency.
For operating the contactor manually, use the push rod only in the way
described hereafter.
actuating opening
NXAIR / ≤ 40 kA
Fig. 200: Push rod inserted
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