Transformer / Switchboard Connection Unit

End feed units connect lines to transformers, switchboards, and generators, both mechanically and electrically.

The mechanical connection is possible with an assembly flange using boxes, adapter flanges, sealings, and/or bellows in accordance with the project design.

NOTE: The dimensions of the terminal elements, protective flanges, and covers should be calculated prior to ordering, by using the methods specified in the Canalis KR Catalogue.


Terminal element (top) and adapter box (bottom) (left). Transformer/switchboard connection unit (right)

Preparing the Connection to the Terminal Element

Follow these rules for preparing the terminal element for connection:

Ensure that the switchboard/transformer mounting surface is flat.
Prepare the cut outs.
Reinforce the switchboard/transformer mounting surface in accordance with the weight of the terminal element.
The switchboard/transformer must contain fixtures for mechanically securing the terminal element. The weight of the terminal element must not be allowed to fall on the electrical connections (copper connection, flexibles and so on).

Installation in the Transformer / Switchboard

After storage and transport to the installation location, first mechanically secure the terminal element in the transformer/switchboard. Following this, electrically connect the terminal element to the busbar or circuit breaker.

Fixing the Terminal Element Mechanically

Follow these rules while fixing the terminal elements mechanically:

The power cables of the terminal element must be mechanically fixed in the transformer/switchboard. No mechanical load must fall on the electrical cables.
Attach the cover plate to the transformer/switchboard enclosure. Observe the distribution board specifications relating to the degree of protection. It may be necessary to use additional sealant to achieve degree of protection higher than IP55.

Connecting the Terminal Element Electrically

Follow these rules while connecting the terminal element electrically:

Remove the protective transportation devices.
Carry out the electrical connection in accordance with the terminal specifications and the information provided by the distribution board manufacturer. Take into account the dimension of the connecting material in accordance with these specifications.