4.6
Details of the enclosure
Degree of protection
The degree of protection depends on the enclosure size and the parts used such as cable
entries, dummy plugs and climate nozzles. The nameplate specifies the degree of protection
for which the enclosure is designed. The minimum degrees of protection are:
● Device group I: IP54/IP55
● Device group II: IP54 to IP66 (Zones 1 + 2)
● Device group II: IP64 to IP66 (Zones 21 + 22)
Operating temperature
The operating temperature range of the enclosure depends on the temperature range of the
parts used, and can differ from the actual operating temperature range:
● -40 °C to +75 °C: only for the enclosure versions 6DL2804-0xxx1
● 0 °C to +75 °C
The nameplate specifies the permissible operating temperature range in each case.
● Prior to installation of components, check the operating temperature range of the complete
setup. The operating temperature range for the complete setup may be limited by the
maximum permissible operating temperature of the components and the dissipated heat
produced in the enclosure.
Climate nozzles provide pressure compensation and drainage in the event of varying climatic
conditions.
● In the case of aggressive environments, check whether use of the enclosure is possible
with the material in question. Delivery of enclosures with appropriate surface protection is
possible for use with aggressive environmental conditions.
Cable and wiring entries (CWE)
● When fitting cables, observe the manufacturer's data on the tightening torques of the cable
and wiring entries.
● Use the tightening torque of the clamping screw when connecting the cables.
● Relieve the tension on the cables outside the enclosure so that the cable gland is not
stressed.
● For additional information and technical specifications, refer the respective manufacturer
documentation, in particular:
– Technical specifications, clamping ranges for cables
– Notes on use, installation, mounting, commissioning and maintenance
Description
4.6 Details of the enclosure
Distributed I/O device 6DL2804-1xxxx & 6DL2804-2xxxx
Hardware Installation Manual, 07/2017, A5E42025214-AA
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