Siemens SINAMICS G150, Operating Instructions Manual

Page: 54 / 680

Mechanical installation
3.3 Mounting
Converter cabinet units
54
Operating Instructions, 07/2016, A5E03347396A
Figure 3-14 Outer cabinet connector
3.3.5 Fitting additional canopies (option M21) or hoods (option M23, M43, M54)
To increase the degree of protection of the cabinets from IP20 (standard) to IP21, IP23,
IP43, or IP54, additional canopies or hoods are supplied. These must be fitted once the
cabinets have been installed.
Description
Degree of protection IP21
The degree of protection can be increased to IP21 by fitting an additional canopy. The
canopy is mounted protruding above the cabinet on spacers, 250 mm above the top cover of
the cabinet. Fitting a canopy increases the height of all cabinets by 250 mm.
Degree of protection IP23
Cabinet units with degree of protection IP23 are supplied with additional hoods, as well as
plastic ventilation grilles and braided plastic in the air inlet (doors) and outlet (hoods). The
hoods are flush with the cabinets at the side and front and have a recess at the rear so that
air can escape even if the cabinet is wall mounted. Air escapes from the front and back. The
hood is secured via the four crane hook holes in the cabinet. Hoods increase the height of
the cabinet by 400 mm.