32 Guidelines for planning the cabinet installation
• Equip the air inlets and outlets with gratings that
- guide the air flow
- protect against contact
- prevent water splashes from entering the cabinet.
• 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.
• The internal cooling fans of the drive module and reactors/chokes are usually
sufficient to keep the component temperatures low enough in IP22 cabinets.
• 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.
1 Air inlet
2 Air outlet
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