3 Installation
3.3 Assembly
82
DA1 Variable Frequency Drives
08/18 MN04020005Z-EN
www.eaton.com
Table 5: Minimum clearances and required cooling airflow
The values in table5 are recommended values for an ambient air temperature
of +50 °C for IP20 and +40 °C for IP55 and +40 °C in frame size FS8 (IP20),
an installation altitude of up to 1000 m and a switching frequency of up to
8 kHz.
Frame size
(protection)
a
b
c
Required airflow
mm
in
mm
in
mm
in
m
3
/h
cfm
FS2 (IP20)
50
1.97
31
1.22
75
2.95
70
41
FS2 (IP66)
0
0
12
0.47
150
5.91
0
0
FS3 (IP20)
50
1.97
31
1.22
100
3.94
190
112
FS3 (IP66)
0
0
13
0.51
150
5.91
0
0
FS4 (IP20)
25
0.98
70
2.76
200
7.87
105
62
FS4 (IP55)
10
0.39
71
2.8
200
7.87
425
250
FS5 (IP20)
25
0.98
70
2.76
200
7.87
177
104
FS5 (IP55)
10
0.39
70
2.76
200
7.87
425
250
FS6 (IP55)
10
0.39
140
5.52
200
7.87
650
383
FS7 (IP55)
10
0.39
140
5.52
200
7.87
650
383
FS8 (IP20)
50
1.97
162
6.38
350
13.78
825
485
￫
Typicalheat loss makes up about 3 % of the operational load
conditions.
￫
Please ensure that the installation makes it possible to properly
open and close the control signal terminal enclosure.
①
Figure 45: Minimum required clearance
①
in front of the
variable frequency drive when installed in an
enclosure (control panel)
Frame size
Minimum clearance
①
FS2, …, FS7
≧
15 mm (
≧
0.59 in)
FS8
≧
50 mm (
≧
1.97 in)
