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120 Technical data
I
Maximum output (DC) current. Available for 10 s at start, otherwise as long
max_1
as allowed by module temperature.
S
Nominal apparent (AC) power
N
I
Maximum input (AC) current
max_2
P
Nominal output (DC) power
N
Light-overload use 10% overload capability) ratings
I
Continuous current. 10% overload is allowed for one minute every 5 minutes.
Ld
P
Output power in light-overload use
Ld
Heavy-duty use (50% overload capability) ratings
I
Continuous current. 50% overload is allowed for one minute every 5 minutes.
Hd
P
Output power in heavy-duty use
Hd
Derating
￭
Surrounding air temperature derating
In the temperature range +45...55 °C (+113...131 °F), the rated output current is derated
by 0.5 percentage points 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) :
k
1.00
0.95
0.90
+45 °C
+113 °F
Coolant temperature derating
For the coolant temperature derating, see
Antifreeze content derating
For the antifreeze content derating, see
Altitude derating
At altitudes 0...2000 m (6561.7 ft), no derating. For altitudes over 2000 m (6561.7 ft),
contact ABB.
T
+55 °C
+131 °F
Temperature limits (page
Temperature limits (page
114).
114).
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