Installation Instructions - Siemens Simatic CFU Commissioning Manual

Equipotential bonding
It is possible to connect a potential compensation cable. The cross-section of the ground
connection must consist of a copper conductor with at least 4 mm
11.3.1.1

Installation instructions

Installation location in zone 2/22 hazardous areas
You can find information on this in section "Use in hazardous areas (Page 24)".
Mounting position
NOTICE
Damage to property
Avoid a tensile load on the grounding cable, which connects the housing cover to the base
of the housing.
The SIMATIC CFU PA bundle with aluminum enclosure is installed horizontally or vertically.
The cable glands should point down or to the right.
● Horizontal installation of the CFU (connector slot X2 on the right)
● Vertical installation of the CFU (connector slot X2 at the top)
Additional information
● Technical information can be found in section "Technical specifications of the SIMATIC
CFU PA bundle with aluminum enclosure (Page 143)".
● You can find information on derating in section "Mechanical and climatic ambient conditions
for operation (Page 134)".
SIMATIC CFU
Commissioning Manual, 07/2018, A5E39252870-AC
Compact Field Unit in the enclosure for use in a hazardous area
11.3 Configuration with SIMATIC CFU PA bundle with aluminum enclosure
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