AF6ZP0CA – COMBIAC0 & ACE0 2uC – User Manual Page – 9/155
2.3 Current ratings
Model
Nominal DC
voltage
Maximum
2-min rated
current [Arms]
Continuous
rated current
[Arms]
DC maximum
current [A]
ACE0
24V 220 110
-
36/48V 180 90
COMBIAC0
24V 220 110 270
36/48V 180 90 220
ACE0 PW
24V 320 160
-
36/48V 280 140
36/48V 320 140
80V 200 100
COMBIAC0 PW
24V 320 160 400
36/48V 280 140 300
36/48V 320 140 300
80V 200 100 200
4 Combinations of DC choppers and 3-phase inverters different from those
reported in the previous table are also available.
4 Internal algorithms automatically reduce the maximum current limit when heat
sink temperature is above 85°C. Heat sink temperature is measured internally
near the power MOSFETs (see paragraph 6.6).
4 Two-minute ratings are referred to an inverter equipped with a base plate. No
additional external heat sink or fans are used for the 2-minute rating test. Ratings
are based on an initial controller base plate temperature of 40°C and a maximum
base plate temperature of 85°C.
4 The inverter can deliver the rated continuous current only if it is adequately
cooled. When it is equipped with its own finned heat sink, a proper dissipation is
obtained by applying a 100 m
3
/h airflow. In case it is provided with the base plate,
it is customer’s duty to design an adequate cooling system that can dissipate the
heat produced by the inverter, keeping its temperature below 85 °C. Otherwise,
the inverter will deliver a continuous RMS current lower than the rated one.
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