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8.2.1 Mechanical Mounting
8.2.1.1 Clearance
All enclosure types allow side-by-side installation except
when an IP21/IP4X/TYPE 1 enclosure kit is used (see
chapter 11 Options and Accessories
Side-by-side mounting
IP20 A and B enclosure types can be arranged side-by-side
with no clearance required between them, but the
mounting order is important.
shows how to
mount the frames correctly.
130BD389.11
A2
B3
B3
A2
Illustration 8.1 Correct Side-by-side Mounting
If the IP21 enclosure kit is used on enclosure types A1, A2
or A3, there must be a clearance between the frequency
converters of min. 50 mm.
For optimal cooling conditions, allow a free air passage
above and below the frequency converter. See
a
b
130BA419.10
Illustration 8.2 Clearance
Enclosure Type
A1*/A2/A3/A4/
A5/B1
B2/B3/B4/
C1/C3
C2/C4
a [mm]
100
200
225
b [mm]
100
200
225
Table 8.3 Air Passage for Different Enclosure Types
8.2.1.2 Wall Mounting
When mounting on a solid back wall the installation is
straight forward.
1.
Drill holes in accordance with the measurements
given.
2.
Provide screws suitable for the surface for
mounting the frequency converter. Retighten all 4
screws.
If the frequency converter is to be mounted on a non-solid
back wall, provide the frequency converter with a back
plate, “1”, due to insufficient cooling air over the heat sink.
Mechanical Installation
VLT
®
AutomationDrive FC 301/FC 302 Design Guide, 0.25-75 kW
110
MG33BF02 - Rev. 2013-12-20
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