ExplanationItem
Main DC switch fuse for all units in the cubicle
(optional) or main DC fuses
1
DC fuse disconnectors for each individual module2
Three frame R1i inverter modules3
Frame R3i inverter module4
Two frame R4i inverter modules5
Output connections6
Cable entries7
Air outlet compartment with cabinet cooling fan (not
shown)
8
Layout of cubicle with frame R1i…R4i modules in their own compartments (option
+C204)
If option +C204 is selected, each inverter module is installed into its own compartment
behind a door. Up to three inverter modules of frame sizes R1i…R4i can be installed in one
400 mm wide cubicle.
At the top of the cubicle, there is another compartment which contains the common DC
switch-disconnector and fuses for all the modules in the cubicle.
The inverter modules are installed in an inclined position so that the cooling air flows from
the cool area at the front of the cubicle through the modules into the hot area at the back.
The hot air is exhausted through the roof of the cubicle.
Each module has a dedicated DC switch-disconnector. When the switch-disconnector is
open, the door to that particular compartment can be opened. It is also allowable to replace
the module, its cooling fan, or its DC fuses.
20 Hardware description
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