Ventilation; Cable Lengths And Cross Sections - Danfoss AHF 005 Operating Instructions Manual

4 Installation
NB!
Unit does not comply with IP20 rating if plastic back plate or terminal cover is omitted.

4.1.2 Ventilation

The filters are cooled by means of air circulation. Consequently, the air needs to be able to move freely above and below the filter module. The efficiency
of the filter modules is greater than 0.98. When installing a filter module in a panel or another enclosure, ensure there is sufficient airflow though the
4
enclosure to limit heat rise in the enclosure.
AHF 0xx, 380 – 415V,
50 Hz
Max. Heat
10 A 83 W
19 A 158 W
26 A 216 W
35 A 290 W
43 A 358 W
72 A 599 W
101 A 840 W
144 A 1197 W
180 A 1496 W
217 A 1804 W
289 A 2403 W
324 A 2694 W
370 A 3076 W
Table 4.1: Max. heat losses at full load under-voltage.
NB!
If other heat sources (e.g. Danfoss frequency converters) are installed in an enclosure with the harmonic filter AHF 0xx, this heat
generation must also be considered when calculating required airflow
NB!
If the cooling air is polluted (dust, dirt swirl, grease, aggressive gas) the function of the filter module may be impeded. Ensure sufficient
countermeasures, e.g. separate cooling air, mounting of air filters, periodical cleaning.

4.1.3 Cable lengths and cross sections

The installation of our frequency converters in combination with AHF filters allow for a high freedom of installation flexibility. Cable cross section has to
be in accordance with data in the table below and cable lenght has to be limited to 50 meters. It is adviced to use unscreened cables between the AHF
filter and the drive.
Power wiring
Standard connection
Supply voltage must be connected to the terminals X1.1, X1.2 and X1.3. The frequency converter supply terminals L1, L2 and L3 must be connected to
the filter module terminals X2.1, X2.2 and X2.3.
Paralleling of FC's
If several frequency converters are to be connected to the harmonic filter, the connection is similar to the standard connection - The supply terminals
L1, L2 and L3 of several frequency converters must be connected to the filter module terminals X2.1, X2.2 and X2.3.
16
AHF 0xx, 380 – 415V, AHF 0xx, 440 – 480V,
60 Hz 60 Hz
Max. Heat Max. Heat
190 W 190 W
259 W 259 W
349 W 349 W
429 W 429 W
718 W 718 W
1008 W 1008 W
1437 W 1437 W
1796 W 1796 W
2165 W 2165 W
2883 W 2883 W
3232 W 3232 W
3691 W 3691 W
®
MG.80.C2.02 - VLT
AHF 005/010 Operating Instructions
AHF 0xx, 500V - 525V,
50 Hz
Max. Heat
104 W
197 W
270 W
364 W
447 W
748 W
1050 W
1496 W
1871 W
2255 W
3003 W
3367 W
is a registered Danfoss trademark
AHF 0xx, 690V, 50 Hz
Max. Heat
617 W
1033 W
1448 W
2065 W
2581 W
3112 W
4145 W
4646 W
5306 W