Danfoss VLT AutomationDrive FC 361 N200 User Manual

6.6.2 Derating for Altitude
The cooling capability of air is decreased at lower air pressure. No derating is necessary at or below 1000 m (3281 ft). Above
1000 m (3281 ft), the ambient temperature (T
AMB
) or maximum output current (I
MAX
) should be derated. Refer to
Illustration 6.2.
Max.I
out
(%)
at T
AMB, MAX
Altitude (km)
HO
NO
T
at 100% I
out
100%
96%
92%
0 K
-3 K
-6 K
1 km 2 km 3 km
-5 K
-8 K
-11 K
130BT866.10
AMB, MAX
Illustration 6.2 Derating of Output Current Based on Altitude at T
AMB
,
MAX
Illustration 6.2 shows that at 41.7 °C (107 °F), 100% of the rated output current is available. At 45 °C (113 °F) (T
AMB
, MAX-3
K), 91% of the rated output current is available.
Mechanical Installation Con... VLT® AutomationDrive FC 361
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Danfoss VLT AutomationDrive FC 361 N200 Specifications

General

Brand	Danfoss
Model	VLT AutomationDrive FC 361 N200
Category	DC Drives
Language	English