Technical data 149
Derating
The continuous output currents stated above must be derated if any of the following
conditions apply. The final derating factor is a multiplication of all applicable derating
factors.
Ambient temperature de
rating: 1.6 A models
A temperature derating is require
d when operating the 1.6 A models in ambient
temperatures between 45 °C (+113 °F) and the maximum of 50 °C (122 °F):
Ambient temperature
1.00
0.80
+45 °C +50 °C
+113 °F +122 °F
Derating factor for 1.6 A models:
Ambient temperature derating: 3 A, 6 A & 9 A models
No temperature derating is required in ambient temperatures up to the maximum of
55 °C (131 °F).
Altitude derating
At altitudes from 1000 to 2000 m (3280 to 6560 ft) abo
ve sea level, the derating is 1%
for every 100 m (328 ft). For a more accurate derating
, use the DriveSize PC tool.
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