The dimensions are only for the physical units, but when
installing in an application it is necessary to add space for
free air passage both above and below the units. The
amount of space for free air passage is listed in
Enclosure
Clearance [mm]
Frame
IP class
Above unit
Below unit
H1
20
100
100
H2
20
100
100
H3
20
100
100
H4
20
100
100
H5
20
100
100
H6
20
200
200
H7
20
200
200
H8
20
225
225
H9
20
100
100
H10
20
200
200
I2
54
100
100
I3
54
100
100
I4
54
100
100
I6
54
200
200
I7
54
200
200
I8
54
225
225
Table 5.2 Clearance Needed for Free Air Passage
How to Install
VLT
®
HVAC Basic Drive FC 101 Design Guide
50
MG18C502 - Rev. 2013-09-06
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