M21, Degree Of Protection Ip21; General Information - Siemens SINAMICS S120 Equipment Manual

Options

8.31 M21, degree of protection IP21

8.31 M21, degree of protection IP21
8.31.1

General information

Availability of option
This option is available for the following S120 Cabinet Modules:
● Line Connection Module
● Basic Line Module
● Smart Line Module
● Active Line Module
● Motor Module in chassis format
● Booksize Base Cabinet
● Central Braking Module
● Auxiliary Power Supply Module
Description
To increase the degree of protection of the cabinet units from IP20 (standard) to IP21,
additional canopies are supplied.
Increasing the degree of protection in this way ensures that not only is the cabinet unit
protected against the ingress of foreign bodies with a diameter of 12.5 mm and above (IP20,
protection level provided as standard), but also against the ingress of water droplets falling
vertically from above (IP21).
The canopy is flush-mounted with the cabinet and is fitted using spacers at a distance of 250
mm above the top cover of the cabinet. The canopy increases the height of a cabinet unit by
250 mm, as shown in the diagram below (number (1)).
Figure 8-40
422
Cabinet with canopy (250 mm higher)
S120 Cabinet Modules Equipment Manual
Manual, (GH5), 10/2008, A5E00427098A