ABB ACS880-04 Hardware Manual page 53

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Make sure that the air inlets and outlets are large enough to allow sufficient air
flow in and out of the cabinet. This is critical for proper cooling of the drive module.
Minimum air inlets are four Rittal air filters (SK 3243.200 for a 600 mm wide cabinet) or
two ABB air inlet filters (see section
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Equip the air inlets and outlets with gratings that
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guide the air flow
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protect against contact
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prevent water splashes from entering the cabinet.
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The drawing below shows two typical cabinet cooling solutions. The air inlet is at the
bottom of the cabinet, while the outlet is at the top, either on the upper part of the door
or on the roof. We recommend that the air outlet is on the cabinet roof. Use an extra
exhaust fan if the air outlet is on the cabinet door.
Air inlets and outlets on the cabinet door
1 Air inlet
2 Air outlet
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The internal cooling fans of the drive modules and reactors/chokes are usually
sufficient to keep the component temperatures low enough in IP22 cabinets.
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In IP54 cabinets, thick filter mats are used to prevent water splashes from entering the
cabinet. This requires the installation of additional cooling equipment, such as a hot air
exhaust fan.
Guidelines for planning the cabinet installation 53
Cabinet ventilation
2
1
on page 167
Air flow inside the drive module