Operating conditions

Operation only permitted, if following conditions are met:

• Permanently installed electrical installation.
• Connection cable permitted for explosion risk areas and load.
• Mains disconnect device with a contact opening of at least 3 mm per pole.
• Permitted voltage and frequency rating plate.
• Explosion protection terminal box provided.
• Protective-conductor terminal, at mains end in terminal box. There is a terminal on the outside of the fan for earthing a duct system.
• Operating in intended air power range.
• Permitted operating point. The current and power stated on the rating plate are measured with free suction and free blow-out. They may be higher or lower depending on the operating point.