Compact Field Unit In The Enclosure For Use In A Hazardous Area; Cfu In Hazardous Areas - Siemens Simatic CFU Commissioning Manual

Compact Field Unit in the enclosure for use in a
hazardous area
11.1

CFU in hazardous areas

CFU in enclosure
The enclosure serves to integrate a CFU in the automation environment with field devices in
a hazardous area (up to zone 2/22).
● The CFU can be pre-assembled in the enclosure. The "SIMATIC CFU PA bundle with
aluminum enclosure" is designed specifically for use in the hazardous area of zone 2/22.
Ordering information can be found in section "Article numbers (accessories / spare parts)
(Page 145)".
● When installing in other enclosures (including in control cabinets), you must ensure that
the enclosure, including the CFU, is approved for use in hazardous areas.
The cable shields must be placed in the housing such that they are connected to the functional
earth. Cable glands and sealing plugs are included with "SIMATIC CFU PA bundle with
aluminum enclosure". The sealing plugs are attached by default. Unused openings in the
housing must be closed at all times.
SIMATIC CFU
Commissioning Manual, 07/2018, A5E39252870-AC
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