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D-97
Additional information
Practical information
Prisma P switchboards come equipped with a special interface that allows them to
be directly connected to Canalis KT trunking.
The electrical connection between the Canalis KT trunking and the Prisma P
switchboard is just as easy to carry out as jointing between two busbar trunking
sections.
The Canalis KT interface is totally integrated in the Prisma P switchboard volume.
It comprises a Canalis KT joint block and interface/circuit breaker connection
terminals.
Trunking connection via the top
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Dismantle the roof.
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Cut out a passage for the busbar trunking.
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Adjust the guides according to the KT width that will be connected.
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Unscrew the junction block screws.
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Ensure that the busbar trunking length to be connected to the switchboard is
correctly supported and that it is not resting on the interface.
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Lower the element until it is in contact with the interface frame, without bearing on it.
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Tighten the junction torque nuts. When the head breaks, the torque of 60 Nm has
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been reached.
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In certain cases, it is recommended to only tighten the 2 middle nuts to 60 Nm
and the 2 outer nuts to 10 Nm.
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A red plastic washer that is ejected when the head breaks provides visual
evidence that the joint tightening operation has been carried out correctly.
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For dismantling or maintenance operations, a second head is available on the nut
and can be retightened using a conventional torque wrench. The recommended
tightening torque is then 60 Nm.
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Reassemble the roof.
Sealing kit
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In order to retain the original IP index, use the roof sealing kit ordered with the
busbar trunking. This kit guarantees an IP52 degree of protection at the trunking
passage.
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The kit is installed by cutting out the roof of the Prisma P switchboard.
This cut-out, which is the same dimension for all Canalis KT busbar trunking ratings,
is made using the template delivered with the sealing kit.
DD383919.eps
Connection of busbar trunking