ABB ACS880-11 - Surrounding Air Temperature Derating, IP55 (UL Type 12)

Surrounding air temperature derating, IP55 (UL Type 12)
The derating is the same as for degree of protection of IP21 (UL Type 1) except for
drive types shown below.
DeratingTemperature
range
ACS880-31-087A-3+B056 and -077A-5+B056
No deratingup to +40 °C
up to +104 °F
Derate 1% for every 1 °C (1.8 °F) up to 45 °C (113 °F): Derate 2% for every
1 °C (1.8 °F) up to 55 °C (131 °F). Calculate the output by multiplying the current
given in the rating table by the derating factor (k, in the diagram below).
+40 … +55 °C
+104 … +131 °F
T
1.00
0.90
+40 °C
+104 °F
+50 °C
+122 °F
k
+55 °C
+131 °F
0.80
+45 °C
+113 °F
0.75
0.85
0.95
-15 °C
+5 °F
…
ACS880-11-206A-3+B056 and -180A-5+B056
No deratingup to +40 °C
up to +104 °F
Technical data 165