ABB ACS580 Series - Surrounding Air Temperature Derating, IP21 (UL Type 1)

No derating needed for 35 °C ambient temperature.
Referring to I
LD
in the ratings tables (starting from page 272), drive type
ACS580-01-026A-4 exceeds the I
Ld
requirement of 19.43 A.
Surrounding air 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).
T
1.00
0.90
+40 °C
+104 °F
+50 °C
+122 °F
k
0.80
-15 °C
+5°F
…
0.85
0.95
IP21 (UL Type 1) drive type -078A-4; -099A-6, -125A-6, -144A-6
-078A-4: In the temperature range +40…45 °C (+104…113 °F), the rated output
current is derated by 1% for every added 1 °C (1.8 °F). In the temperature range
+45…50 °C (+113…122 °F), the rated output current is derated by 2% 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):
0.90
k
0.80
0.75
0.85
0.95
T
+40 °C
+104 °F
+50 °C
+122 °F
…
+45 °C
+113 °F
1.00
-15 °C
+5 °F
0.85
Technical data 279