Installation
9229 0025 176 0E 39
2021-11-15
Installation
Preliminary work For preliminary work, the vacuum circuit-breaker must be
• placed on a suitable surface and secured against falling over,
• or prepared for installation while suspended from a crane
Property damage due to incorrect operation when the mechanical interlock is
activated!
If the SION
®
vacuum circuit-breaker is triggered manually with the cover removed
and the mechanical interlock actuated, the operating mechanism of the vacuum cir-
cuit-breaker will be irreversibly damaged.
Any warranty claims are lost in the event of such incorrect operation.
Use suitable means to prevent the SION
®
vacuum circuit-breaker from closing if the
cover has been removed and the mechanical interlock has been actuated.
Attachment in the switching cubicle
The vacuum circuit-breaker is delivered in the OPEN switch position and with the
closing spring discharged. Before installing the vacuum circuit-breaker, remove the
transport aids (see “Unpacking”, on page 10).
Check data Before mounting the vacuum circuit-breaker in a switching cubicle, check the details
on the name plate (see “Name plate”, on page 34) in order to avoid confusion.
Installation position The SION
®
vacuum circuit-breaker as a withdrawable part and fixed-mounted de-
vice for indoors can only be installed vertically.
Fig. 46 Installation position
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