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General technical specifications
1.1 Installation and EMC guidelines
1.1.9.3
Control cabinet
● All control cabinets must be equipped with a grounding/equipotential busbar that must be
connected directly to the cabinet frame at both ends.
● It is not allowed to operate contactors without protective circuit in a control cabinet
containing SIMATIC TDC components.
● If contactors without protective circuit are operated in a control cabinet next to the
SIMATIC TDC cabinet, the cabinets must be partitioned by means of a sheet steel panel.
● All control cabinets in which SIMATIC TDC components are operated must be equipped
with a shielding busbar that must be connected directly at both ends to the cabinet frame.
● It is not allowed to use gas discharge lamps in the cabinet.
● The cabinet must be designed to enable unobstructed air convection.
1.1.9.4
Arrangement and clearances
The following minimum dimensions must be maintained for stacked installations of SIMATIC
TDC racks:
e.g. control cabinet 2200 x 600 x 600 mm
20
SIMATIC TDC hardware
System Manual, 12/2013, A5E01114865-07
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