hager KEH31D00S3LMA, System Manual

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26 Technical changes reserved
4.2.4 Expansion compensation unit
The materials within any busbar runs are frequently subjected to temperature
changes. This leads to differing temperature behaviours and hence to differing
expansions. This expansion must be compensated for long straight busbar runs
and if a busbar run is crossing an expansion joint between two parts of a
building.
A special busbar element, known as an expansion compensation, is used to
compensate.
Such an expansion compensation is used with straight busbar elements over
50 m or with a vertical busbar run over 30 m as well as when crossing an
expansion joint between two parts of a building.
Expansion compensation (conductor material: aluminium)
Rated current I
n
Order number
800 A
1000 A
1250 A
1600 A
2000 A
2500 A
3200 A
4000 A
KEH33S88S0LMA
KEH34S88S0LMA
KEH35S88S0LMA
KEH36S88S0LMA
KEH37S88S0LMA
KEH31D88S0LMA
KEH32D88S0LMA
KEH33D88S0LMA