Safety
vacon • 11
Local contacts: http://drives.danfoss.com/danfoss-drives/local-contacts/
1
1.8
Extended temperature range
VACON
®
20 X has
an integrated cooling system
, independent from the motor fan. Under maximum
operating conditions, the ambient temperature cannot exceed
40 °C
. See Table 28 for the output
rated current. Higher temperatures are allowed only with derating of the output current. With de-
rating the unit can
operate up to 50°C
.
Figure 5.Temperature-output current derating curve.
The AC drive is cooled down by air-ventilation. Therefore, make sure that enough free space is left
around the AC drive to ensure sufficient air circulation (see for more details the mounting instruc-
tions on chapter 3).
NOTE:
Up to 1.5 kW (Voltage range 380-480V) and 0.75 kW (Voltage range 208-240V) the drive is not
equipped with external cooling fan.
Ambient temperature (°C)
P
e
rc
en
t
rat
e
d
ou
tput c
u
rr
e
n
t (
%
I
N
)
10
20
30
40
50
100
75
50
25
0
-10
150
60
Temperature - Output Current Derating Curve
