ABB 3BHE025541R0101 PCD231B controller unit
Mounting the converter module H5 inside an enclosure
Cooling air inlet
The cooling fan blows the air out of the front, right and left
side of the converter module. View from:
Right side Front side Left side
Free space around the converter module
In mm:
Cooling air outlet
To avoid circulating air inside the enclosure make sure the exhaust air leaves the enclosure.
Mounting the converter module:
1. Remove the control panel and front cover:
3. Now all mounting holes are accessible:
Detail top (fan box removed):
2. Remove screws (T20) and pull out the fan box:
Detail bottom:
Mounting the H7 power unit inside an enclosure
Cooling air inlet
The cooling fan takes the air from the back, left, right side and Free space around the converter module
from the bottom of the converter module. View from: Optimum Compromise
Right side Back side Left side 50 TMR ~ 100
50 50
Top view Top view
air flow air flow air flow air flow
BG_800_002_A6_a.ai
air flow
BG_800_002_A6_a.ai
air flow Cooling air outlet
To avoid circulating air inside the enclosure
make sure the exhaust air leaves the enclo sure.
Cable entries Power cable connection The figure below gives an example, how the
The power cable connection is done via rectangular busbars can be mounted in case
option 3ADT786223. This option consists of all cable connections are made at the left
5 rectangular copper busbars with screws. side of the converter module. This results in The module must be
fixed The mechanical details are shown in the four layers of power cables. at the upper side with the
TMR (Top Mounting Rail). figure below.
Ø14 75 In case the AC or DC connection or perhaps
both of them have to be made at the right
C 25 side of the converter module use the space
behind the converter. Move the power termi D 250
nals via rectangular busbars to the final con nection points. In this case the busbars need
to be fixed at the enclosure, not at the con U verter module! The figures below give a
rough example, how connections can be
V made.
When mounting the rectagular busbars or W connecting cables directly please make
sure the correct bolts are used. The con verter module is equipped with threaded
holes at its left side. Because of that the
length of the screw threads is limited to 35
mm (see drawing below).

Mounting the H8 power unit inside an enclosure
Cooling air inlet Cable entries
The cooling fan takes the air from the The cable entries are symmetric on both
back, left, right side and from the bottom sides.
of the converter module. Nevertheless only the entries on the left side
View from: should be used for cables connected to the
Front side Left / Right side electronic power supply (SDCS-POW-H01)
or the controller board (SDCS-CON-H01).
The module must be fixed
at the upper side with the
TMR (Top Mounting Rail).
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View from bottom
Free space around the converter module
Do not place the converter module in a
corner. In case the fan cannot take the air
through the bottom plate of the enclosure none of the remaining entries must BG_800_001_A7_a.ai
Internal cable ducts
be blocked. are used for the snubber cables. Do not use
these cable ducts for
>20 other cables e.g.
process signals!
50
BG_800_001_A7_a.ai Use cable ties to fix
Air entry through the bottom plate the fan cable!
Make sure the converter module gets
clean air, because there is no air filter in
front of the converter fan.
Cooling air outlet
To avoid circulating air inside the encloFasten all cables, otherwise the air
flow from fan will destroy them!
sure make sure the exhaust air leaves the
enclosure.