ABB ACS800-U4 Hardware Manual page 29

Arrange the cooling air flow through the converter module so that the requirements
given in chapter Technical data
• cooling air flow
Note: The figures in Technical data
than nominal, less cooling air is required.
• allowed ambient temperature and temperature rise inside the cabinet
• allowed pressure drop over the cabinet that the module fan can overcome
• air inlet and outlet sizes required for the module cooling and recommended filter
material (if used).
In addition to the above, the heat dissipated by cables and other additional
equipment must also be ventilated.
The internal cooling fans of the converter modules and reactors/chokes are usually
sufficient to keep the component temperatures low enough in IP 22 cabinets.
In IP 54 cabinets, thick filter mats are used to prevent water splashes from entering
the cabinet. This entails the installation of additional cooling equipment, such as a
hot air exhaust fan. See chapter Technical data for
• extra exhaust fan types
• pressure drop over the cabinet that the extra exhaust fan must overcome.
The installation site must be sufficiently ventilated.
are met:
apply to continuous nominal load. If the load is cyclic or less
Cabinet assembly planning
29