ABB ACS800-67LC, Руководство по оборудованию

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32 Operation principle and hardware description
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Power cable lead-throughs
There are three possible lead-through types for power cables: the blank plate (as default),
sealing modules (optional) and cable glands (on request). Cable lugs can be connected to
both sides of the connection busbar. The busbar size and number of holes varies
according to cabinet size. For illustration and dimensions, see chapter
Dimension
drawings . For options available, see section Option codes (+ codes) on page 40 . For
number and sizes of the power cables, see section Selecting the power cables on page
54 .
All external power cables used are unshielded.
Note: In the USA and Canada, all lead-through components with UL Type 12 to fulfill the
requirements of degree of protection UL Type 12. This includes power cables, control
cables, user connections and 230 V AC supply cable.
Blank plate
The blank plate has no openings for the cables when delivered. Ensure that all the lead-
through components you use fulfill the requirements of degree of protection IP54 or higher.
Sealing modules
The cables enter the cabinet through the sealing modules. The number of sealing modules
depends on the size of the incoming cubicle and whether 1-phase or 3-phase cabling is
used. In cabling, the modules can be adjusted to accommodate any cable of
9.5…32.5 mm, 28…54 mm or 48…71 mm in diameter by removing layers. The modules
are laid out in rows in a frame. Each row also has a wedge that is tightened to keep the
modules in place.
Cable glands
The cables enter the cabinet through cable glands. Cable glands are only available
through application engineering. Only cable glands can be grounded 360°.