Technical data 393
Losses, cooling data and noise
Losses and cooling data
Frame size R0 has natural convection cooling. Frame sizes R1…R4 are provided
with an internal fan. The air flow direction is from bottom to top.
The table below specifies the heat dissipation in the main circuit at nominal load and
in the control circuit with minimum load (I/O and panel not in use) and maximum load
(all digital inputs in the on state and the panel, fieldbus and fan in use). The total heat
dissipation is the sum of the heat dissipation in the main and control circuits.
Type C od e
Heat dissipation
Air flowMain circuit Control circuit
Rated current Min Max
W BTU/Hr W BTU/Hr W BTU/Hr m
3
/h ft
3
/min
1-phase supply voltage 200 - 240 V units
ACS320-01U-02A4-2 19 65 6.1 21 22.7 78 - -
ACS320-01U-04A7-2 38 130 9.5 32 26.4 90 24 14
ACS320-01U-06A7-2 60 205 9.5 32 26.4 90 24 14
ACS320-01U-07A5-2 62 212 10.5 36 27.5 94 21 12
ACS320-01U-09A8-2 83 283 10.5 36 27.5 94 21 12
3-phase supply voltage 200 - 240 V units
ACS320-03U-02A6-2 19 65 6.1 21 22.7 78 - -
ACS320-03U-03A9-2 31 106 6.1 21 22.7 78 - -
ACS320-03U-05A2-2 38 130 9.5 32 26.4 90 24 14
ACS320-03U-07A4-2 60 205 9.5 32 26.4 90 24 14
ACS320-03U-08A3-2 62 212 9.5 32 26.4 90 21 12
ACS320-03U-10A8-2 83 283 10.5 36 27.5 94 21 12
ACS320-03U-14A6-2 112 383 10.5 36 27.5 94 52 31
ACS320-03U-19A4-2 152 519 10.5 36 27.5 94 52 31
ACS320-03U-26A8-2 250 854 16.6 57 35.4 121 71 42
ACS320-03U-34A1-2 270 922 33.4 114 57.8 197 96 57
ACS320-03U-50A8-2 430 1469 33.4 114 57.8 197 96 57
3-phase supply voltage 380 - 480 V units
ACS320-03U-01A2-4 11 38 6.6 23 24.4 83 - -
ACS320-03U-01A9-4 16 55 6.6 23 24.4 83 - -
ACS320-03U-02A4-4 21 72 9.8 33 28.7 98 13 8
ACS320-03U-03A3-4 31 106 9.8 33 28.7 98 13 8
ACS320-03U-04A1-4 40 137 9.8 33 28.7 98 13 8
ACS320-03U-05A6-4 61 208 9.8 33 28.7 98 19 11
ACS320-03U-07A3-4 74 253 14.1 48 32.7 112 24 14
ACS320-03U-08A8-4 94 321 14.1 48 32.7 112 24 14
ACS320-03U-12A5-4 130 444 12.0 41 31.2 107 52 31
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