3 ATEX Explosion hazard areas
B 1091 en-3118 43
Pos: 11 5 /Anlei tung en/Mo toren /B109 1 Drehs trom motor en/3. AT EX/Fr emdl üfter [Zone2 2] @ 7\mod_1431437440256_388.docx @ 219397 @ 3 @ 1
3.4.2 External fan
Motors with the additional labelling F (e.g. 80S/4 3D F) are equipped with an external fan and must be
monitored with the integrated temperature sensor.
WARNING
Explosion hazard
The motor must only be operated together with the external fan. Failure of the external fan
may cause the motor to overheat and therefore cause damage and/or injury up to and
including ignition of the explosive atmosphere.
The operating instructions for the external fan must be observed.
The power supply to the external fan is provided separately via the terminal box of the external fan. The
supply voltage of the external fan must comply with the voltage which is stated on the type plate. The
external fan must be protected against overheating with suitable monitoring equipment! The IP
protection class of the external fan may differ from that of the motor. The lower protection class applies
for the drive unit. The cable glands must as a minimum correspond to the protection class which is
specified on the type plate. Unused openings must be closed with plugs, which as a minimum
correspond to the protection class of the motor.
External fans and motors for use in explosion hazard areas have Ex labelling according to RL 94/9 EEC
or 2014/34/EU. The labelling must be present on both the external fan and the motor. If there is a
difference between the labelling on the external fan and the motor, the lower labelled explosion
protection applies for the entire drive unit. The details of surface temperatures apply for the entire drive
unit; the stated max, temperature applies for the individual components. Any gear unit which is present
must also be taken into account. Please contact Getriebebau NORD in case of doubt. If any component
of the entire drive unit is not provided with Ex labelling, the entire drive unit may not be used in an
explosion hazard area.
Pos: 11 6 /Allg emein/ Allg emeing ültig e Mod ule/---------- Seiten umbr uc h ---------- @ 1\mod_1329145698658_0.docx @ 15891 @ @ 1
227
To Next Page
