Ambient Temperature Derating, Ip21 (Ul Type 1) - ABB ACH580-01 Hardware Manual

256 Technical data
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Ambient temperature derating, IP21 (UL Type 1)

IP21 (UL Type 1) drive types, other than the exceptions below
In the temperature range +40...50 °C (+104...122 °F), the rated output current is
derated by 1% for every added 1 °C (1.8 °F). The output current can be calculated by
multiplying the current given in the rating table by the derating factor (k, in the
diagram below).
k
1.00
0.95
0.90
0.85
0.80
...
-15 °C
+5 °F
IP21 (UL Type 1) drive type -302A-4
-302A-4: In the temperature range +40...50 °C (+104...122 °F), the rated output
current is not derated at all.
k
1.00
0.95
0.90
0.85
0.80
0.75
...
-15 °C
+5 °F
+40 °C +45 °C
+104 °F +113 °F
+40 °C +45 °C
+104 °F +113 °F
0.90
T
+50 °C
+122 °F
1.00
T
+50 °C
+122 °F