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6LE007596Ad
Installation
17.6 Installation of the protection accessories
For the installation of protection accessories, refer to the following manuals:
Accessories
Instructions
IB interphase barrier
6LE007544A
Cut-off chamber cover
6LE007513A
DF Door Frame
6LE007512A
Terminal block protection cover
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IB interphase barrier
The interphase barriers are safety accessories designed to strengthen the isolation between
the phases at the rear connections.
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IB interphase barrier
ATTENTION
• The use of interphase barriers is mandatory for supply voltages over 500 V AC.
• The use of interphase barriers is incompatible with the SP spreaders.
Cut-off chamber cover
The cut-off chamber cover is an accessory mounted on fixed circuit breakers connected with
front connections.
This cover prevents the ionized gases produced during trippings from reaching the
connections and thus avoids electric arcing between the connections.
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