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5.3
Equipotential bonding
A low-impedance ground connection improves the discharge of interference generated by
external power cables, signal cables or cables for I/O modules to ground.
Equipotential bonding terminal
The equipotential bonding terminal ① on the device
(large surface, large-area contact) must be
connected with the central grounding busbar of the
cabinet or plant in which the PC is to be installed.
The minimum conductor cross-section may not be
less than 5 mm
SIMATIC Rack PC 647B
Getting Started, 12/2008, A5E02147333-01
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5.3 Equipotential bonding
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