Degree Of Protection; Environmental Conditions - Siemens SIMOTICS XP 1MB 5/6 Series Operating Instructions Manual

Description
3.3 Design
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.
36
Conditions of installation
IM V17 (IM 2111)
IM V18 (IM 3611)
amb
-20 °C to +40 °C
Operating Instructions, 11/2023, A5E52779956A
Diagram
Max. 55 %
≤ 1000 m
21 % (V/V)
1MB..5/6 shaft height 71 ... 355