3 ATEX Explosion hazard areas
B 1091 en-3118 39
Clamping nut tightening torques
Cable gland M20x1.5 M25x1.5 M32x1.5 M40x1.5 M50x1.5 M63x1.5
Tightening torque (Nm) 5.0 5.0 10.0 13.5 20.0 20.0
Pos: 10 3 /Anlei tung en/Mo toren /B109 1 Drehs trom motor en/3. AT EX/Z uläss iger U mgeb ungste mper aturb ereic h [Zone2 1+22] @ 7\mod_1431435841494_388.docx @ 219180 @ 3 @ 1
3.3.5 Permissible ambient temperature range
For all motors, the permissible ambient temperature range is -20 °C...+40 °C. For motors for operation
in Zones 21 and 22, an extended ambient temperature range from -20 °C...+60 °C is permissible. In this
case, the rated power must be reduced to 72% of the value stated in the catalogue.
If the maximum ambient temperature is between +40 °C and +60 °C, the power output should be
inversely linearly interpolated between 100% and 72%. In this case thermal protection of the motor by
means of a thermistor sensor is essential. The motor connection cables and the cable glands must be
suitable for temperatures of at least 80 °C.
The extended ambient temperature range does not apply for optional conversions such as a brake
and/or external fan. Contact the manufacturer in case of doubt with regard to permissibility!
Pos: 10 4 /Anlei tung en/Mo toren /B109 1 Drehs trom motor en/3. AT EX/ Lackier ung [E XE, EXN , Zone2 1+22] @ 7\mod_1431422450779_388.docx @ 218543 @ 3 @ 1
3.3.6 Painting
Motors are provided with suitable painting ex-works. Subsequent painting may only be carried out after
consultation with Getriebebau NORD or a workshop which is approved for the repair of explosion
protected motors. Compliance with the valid standards and regulations is mandatory.
Pos: 10 5 /Anlei tung en/Mo toren /B1 091 D r ehst rom mot ore n/3. ATE X/ IEC- B14-M otor en [Zon e21+ 22] @ 7\mod_1431436005842_388.docx @ 219211 @ 3 @ 1
3.3.7 IEC-B14 motors
Please comply with the information in Section 1.3.2. Otherwise, explosion protection is not ensured.
Pos: 10 6 /Anlei tu nge n/Mo tor en/B 109 1 Dr ehs tro mm otor en/ 3. AT EX/ Mot orl age – Bes on der heit en [EXE , EX N, Z on e21+ 22] @ 7\ mod_1431428078044_388.docx @ 218924 @ 3 @ 1
3.3.8 Motor position – special features for IM V3, IM V6
If the end of the shaft faces upwards, e.g. version IMV3, IMV6, a cover must be provided by the operator
/ installer, which prevents foreign bodies from falling into the fan cover of the motor (see
DIN EN 60079-0). This must not obstruct the fan from cooling the motor. If the end of the shaft faces
downwards (AS), e.g. versions IMV1, IMV5, the motors are normally provided with a protective cover
on the fan cover. A hand wheel on the second end of the shaft is not permitted.
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