Siemens SIMOTICS GP Operating Instructions Manual page 63

4.- Certificate number.
" X " Special conditions.
5.-
"Ex"
6.-
Distinctive for explosion prevention.
"db" Protection Mode, "db" = Flame Proof Enclosure.
7.-
8.- IIB Explosion Group, IIB for ethylene.
9.-
Temperature class: T3 for a maximum temperature of 200 ° C.
Storage and internal management
STORAGE.
CAUTION
Before any handling, make sure you have your personal safety equipment
such as shoes, gloves, girdle and lenses because if these preventive
measures are not taken, physical damage may occur.
If the motor will not be used immediately, it should be stored
addressing the following recommendations:
1. The storage location should be a clean, ventilated, free of vibrations.
Relative humidity must be lower than 60%, and temperature
variation must not be such that causes condensation in the
windings. If the storage conditions are conducive to condensation,
the motor must be drained regularly through the plug located in the
lower part of both end-shields minimum every 6 months.
insects or rodents into the motor. The motor must not be exposed to
corrosive atmosphere or substances. If the motor will be stored for
more than three months, please consult your local SIEMENS sales
office.
2. Prior to the shipment, motors are lubricated with the proper amount
and grade of grease to provide six months of satisfactory service
under normal operation and conditions. During storage, the motor
shaft should be turned by hand several times a month in order to
evenly distribute the grease inside the bearings.
Unrestricted
Precautions must be taken in order to avoid entry of dust,
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