Mechanical properties
3.2 Degree of protection
1FW3 complete torque motors
50 Configuration Manual, 08/2020, A5E46027705B AA
3.2 Degree of protection
The degree of protection is defined according to EN 60034-5 (IEC 60034-5) (e.g. IP65).
The degree of protection is stamped on the rating plate.
The combination of letters and numbers has the following significance:
● IP = International Protection
● 1st digit = protection against the ingress of foreign bodies
– "6" means complete protection against contact and protection against the ingress of
dust
● 2nd digit = protection against water
– "5" means protection against water jets aimed at the enclosure from every direction.
Cooling lubricants containing oil with creepage, which can also be aggressive, are mainly
used in machine tools and transfer machines. Protection against water alone is not sufficient.
Covers must protect motors against cooling lubricants that contain oil, can creep and/or are
corrosive.
The motor shaft seal must correspond to the selected motor protection type.
Table 3- 7 Degree of protection of the 1FW3 complete torque motors
3.3 Types of construction
You will find information on the 1FW3 motor construction types in Chapter "Overview of the
mounting options (Page 110)".
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