Determining the rating
Providing power distribution using
Apart from extreme atmospheres, Canalis can be installed anywhere!
The order described below is only aimed at presenting the different stages for a
For a detailed design, it is necessary to use appropriate tools, approved by control
bodies, in compliance with local installation standards.
software, edited by Schneider Electric, meets this requirement
Define run layouts.
Identify external influences.
Determine the current rating (Ib).
Calculate the nominal current (In) taking into account derating coefficients.
Choose the busbar trunking rating.
Check the rating with respect to allowable voltage drop.
Check busbar trunking overloads.
Check the rating with respect to short-circuit withstand current.
Choose the source and feeder circuit breakers.
Canalis KT busbar trunking is IP55 and IPxxD by construction.
This protection degree protects the busbar trunking against:
penetration by a 1mm diameter wire,
water projections from all directions.
It can be installed in almost all premises; for more details see the "Determining the
protection degree" pages.
Wherever the busbar trunking must pass outside the building, an aluminium
roof can be supplied; consult your Schneider Electric distributor for information
concerning this option.
The busbar trunking has been qualified for industrial atmospheres.
For sulphurous atmospheres such as sulphur dioxide (SO2) and hydrogen sulphide
(H2S), there is a suitable Canalis KT solution; consult your Schneider Electric
distributor for more information on this option.
Example: paper mills, water treatment works, etc.
The layout of the distribution runs depends on the position of the loads and where
the source is located.
Load protection is placed in the tap-off boxes, at the point of use.
A single and same Canalis busbar trunking supplies a group of loads of different
Schneider Electric has tools you can use to help you choose the architecture best
suited to your application:
Idpro software to simulate the organisation of your electrical networks,
application orientated technical guides (car industry, data centers, shopping
1 - Canalis busbar trunking layout
2 - Identification of external influences