Operation principle and hardware description 41
Descriptions of cabinet options
Note: All options are not available for all drive types, do not coexist with certain other
options, or may require additional engineering. Check actual availability with ABB.
Degree of protection
Definitions
According to IEC/EN 60529, the degree of protection is indicated by an IP code where the
first numeral means protection against ingress of solid foreign objects, and the second
numeral protection against ingress of water. The IP codes of the standard cabinet and
options covered in this manual are defined below.
* meaning for protection of persons: against access to hazardous parts with finger
IP22 (standard)
The degree of protection of the standard drive cabinet is IP22 (UL Type 1). The air outlets
at the top of the cabinet and the air inlet gratings are covered with metallic gratings. With
doors open, the degree of protection of the standard cabinet and all cabinet options is
IP20. The live parts inside the cabinet are protected against contact with clear plastic
shrouds or metallic gratings.
IP42 (option +B054)
This option provides the degree of protection of IP42 (UL Type 1 Filtered). The air inlet
gratings are covered with a metallic mesh between the inner and outer metallic gratings.
IP54 (option +B055)
This option provides the degree of protection of IP54 (UL Type 12). It provides the cabinet
air inlets with filter housings containing folded board air filter mats between the inner and
outer metallic gratings. An additional fan and filtered outlets on the cabinet roof are also
included.
Channeled air inlet through bottom (option +C128)
This option provides air intake to the drive through the cabinet bottom when the drive is
installed on an air duct in the floor,
See also Air inlet through the bottom (option +C128) on page 66.
Required options: IP54 degree of protection (+B055)
Channeled air outlet (option +C130)
This option provides a collar for fitting an air outlet duct. The collar is located on the
cabinet roof. Depending on the equipment installed in each cubicle, the channeled air
outlet either replaces, or adds to, the standard roof arrangement.
See also Air outlet duct on the cabinet roof (option +C130) on page 67.
IP code The equipment is protected …
First numeral Second numeral
IP22 against ingress of solid foreign objects >
12.5 mm diameter *
against dripping (15° tilting) water
IP42 against ingress of solid foreign objects >
1 mm against dripping (15° tilting) water
IP54 dust-protected against splashing water
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