Equipotential bonding
It is possible to connect an equipotential bonding cable. The cross-section of the ground
connection must consist of a copper conductor with at least 4 mm
2
.
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 29)".
Mounting position
The SIMATIC CFU with aluminum housing is installed horizontally or vertically.
The cable glands should point down or to the right.
● Horizontal (CFU PA: Slot X2 right / CFU DIQ: Slot X13 right)
● Vertical (CFU PA: Slot X2 top / CFU DIQ: Slot X13 top)
Additional information
You can find technical information in the following sections:
● Section "Technical specifications of the SIMATIC CFU PA with aluminum housing
(Page 171)"
● Section "Technical specifications of the SIMATIC CFU DIQ with aluminum housing
(Page 179)"
● You can find information on derating in section "Mechanical and climatic ambient conditions
for operation (Page 160)".
Compact Field Unit in the housing for use in a hazardous area
11.3 Configuration with SIMATIC CFU with aluminum housing
SIMATIC CFU
Commissioning Manual, 08/2019, A5E39252870-AD 133
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