Installation
Explosion-protected machines
104 56100000002002, 01/2016
5.2.2 Cooling
Overheating and failure of the motor
Death, severe injury or material damage can occur if you do not carefully observe
the following points.
• Do not obstruct ventilation.
• Prevent the air expelled by neighboring equipment from being immediately
sucked in again.
• For machines with a vertical type construction with air entry from above, prevent
the ingress of foreign bodies and water in the air entry openings (standard IEC /
EN 60079-0).
• If the shaft extension is facing upwards, liquid must be prevented from entering
by moving along the shaft.
Damage caused by small parts falling in
Material damage and injury can occur if the fan is destroyed and therefore the
motor overheats.
• For types of construction with the shaft extension facing downwards, prevent
small parts from falling into the fan cover by providing suitable covers (standard
IEC / EN 60079-0).
• Prevent the cooling airflow from being reduced as a result of covers that might
Table 5-2 Minimum dimension "X" for the distance between neighboring modules
and the air intake of the machine
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