Degree Of Protection; Environmental Conditions; Optional Built-On And Built-In Accessories - Siemens SIMOTICS XP Operating Instructions Manual

3.3.7

Degree of protection

The machine has a type of protection as stamped on the rating plate, and can be installed in
dusty or humid environments.
Machines intended for use in Zone 1 (type of protection flameproof enclosure "db" or
increased safety "eb") or in Zone 2 (type of protection "ec") are designed with IP 55 degree of
protection.
Machines intended for use in Zone 21 (dust explosion protection "tb") and Group IIIC have IP
65 degree of protection. Machines intended for use in Zone 22 (dust explosion protection
"tc") and Group IIIB have IP 55 degree of protection and can be used in dusty environments
such as in mills, silos, animal feed plants, and malthouses, as well as in certain areas of the
chemical industry.
3.3.8

Environmental conditions

Limit values for the standard version
Relative humidity for ambient temperature T
40 °C
Ambient temperature
Installation altitude
Air with normal oxygen content, usually
The standard machines are not suitable for use in corrosive atmospheres, atmospheres with a
high salt content, or outdoor applications.
Limit values for the special versions
If the environmental conditions are different from the details listed here, then the values on
the rating plate or in the catalog will apply.
3.3.9

Optional built-on and built-in accessories

Machines can be equipped with the following integrated components/devices:
• Temperature sensors integrated in the stator winding in order to monitor the temperature
and protect the stator winding from overheating.
• Anti-condensation heating for machines whose windings are subject to a risk of
condensation due to the climatic conditions.
Machines can be equipped with the following mounted components/devices:
• Brake
• Rotary pulse encoder
• External fan (forced ventilation)
• Measuring nipple for SPM shock pulse measurement for bearing monitoring
• Backstop
1MB..5/6 shaft height 71 ... 355
Operating Instructions, 10/2021, A5E41926185A
amb
-20 °C to +40 °C
Description
3.3 Design
Max. 55 %
≤ 1000 m
21 % (V/V)
29