24
2.55
ProtecTor
A new dimension in door screening
Installation and operating manual
In the event of a fault, electrical voltage will be present at the rotor and
impeller. The rotor and impeller are base-insulated.
• Do not touch when fitted!
The fan restarts automatically when control voltage or the saved speed set-
point is applied, for instance after a mains power failure.
• Do not go near the danger zone of the unit.
High temperatures are produced at the fan's electronic housing.
• Combustion hazard.
The fan is protected from blockage. Protective functions that trigger an
automatic shut-down in the event of a fault are integrated, depending on
the fan type.
• Please refer to the operating manual for the respective fan for further
information!
Please read these instructions in full to ensure correct and proper installation
and the correct operation of the ProtecTor.
8.2 Motor protection
8.2.1 AC fan
Thermal contacts (temperature monitors) are embedded in the motor wind-
ings, which open when the maximum winding temperature of 155 °C is
exceeded. The motor is switched off whenever it impermissibly heats up
combined with an appropriate protective switch. The motor is thus protect-
ed against overload, over- and undervoltage, unacceptably high ambient
temperature and the fan jamming.
Thermal contacts meet the conditions for protection against the overload-
ing of equipment with electric motor drive (VDE 0730). Commercial motor
protection switch or bi-metal trips are not suitable as motor protection with
multi-stage operated motors. Only appropriately wired controllers or mod-
ules or a similar type of switch may be used.