Fitting Additional Canopies (Option M21) Or Hoods (Option M23, M43, M54) - Siemens Sinamics G120P Operating Instructions Manual

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, 300 mm above the top cover of
the cabinet. Fitting a canopy increases the height of all cabinets by 300 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). Air
escapes from the front. The hood is secured via the four crane hook holes in the cabinet.
Hoods increase the height of the cabinet by 400 mm.
Degree of protection IP43
Cabinet units with degree of protection IP43 are supplied with additional hoods, as well as
plastic ventilation grilles and close-meshed braided plastic in the air inlet (doors) and outlet
(hoods). Air escapes from the front. The hood is secured via the four crane hook holes in the
cabinet. Attaching the hoods increases the height of the cabinet units by 400 mm.
Compliance with degree of protection IP43 requires an intact filter medium, which must be
serviced at regular intervals depending on the prevailing ambient conditions.
Degree of protection IP54
Cabinet units with degree of protection IP54 are supplied with additional hoods, plastic
ventilation grilles, and a filter medium in the air inlet (doors) and outlet (hoods). Air escapes
from the front. The hood is secured via the four crane hook holes in the cabinet. Hoods
increase the height of the cabinet by 400 mm.
Compliance with degree of protection IP54 requires an intact filter medium, which must be
replaced at regular intervals dependiing on the prevailing ambient conditions. Filters can be
fitted and replaced from outside the cabinet relatively easily.
Note
Early mounting of the canopy or hood!
It is recommended to mount the canopy or hood at an early stage to prevent foreign matter
entering the cabinet devices.
Inverter cabinet units
Operating Instructions, 12/2014, A5E32923362A
Mechanical installation
3.3 Assembly
47