Descriptions of options
Note: All options are not available for all drive types, are not compatible with some
other options, or require additional engineering.
￭
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.
The equipment is protected …
IP code
Second numeralFirst numeral
against dripping (15° tilting) wateragainst ingress of solid foreign objects >
12.5 mm diameter *
IP22
against dripping (15° tilting) wateragainst ingress of solid foreign objects > 1 mmIP42
against splashing waterdust-protectedIP54
* meaning for protection of persons: against access to hazardous parts with finger
IP22 (UL Type 1)
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 (UL Type 1 Filtered) (option +B054)
This option provides the degree of protection of IP42 (UL type 1). The air inlet gratings
are covered with a metallic mesh between the inner and outer metallic gratings.
IP54 (UL Type 12) (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.
￭
Marine construction (option +C121)
The option includes the following accessories and features by default:
• reinforced mechanics
• grab railings
• door flush bolt which allows the door to open 90 degrees and prevents it from
slamming close
• self-extinctive materials
• flat bars at base of the cabinet for fastening
• fastening brackets at the top of the cabinet.
Operation principle and hardware description 51
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