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3.3.5 Suitable lines and cross-sections
PE conductor
Control
electronics
Power section
The minimum conductor cross section chosen must be adequate for the maxi-
mum conductor current. The electrical connection is made via screw terminals
on the power controller. We recommend the use of a shielded line to reduce
EMC interference emission.
v Chapter 2.2 "Filtering and interference suppression" Choosing the suitable
The conductor cross section in the load and choke circuit must not be smaller
than the conductor cross section of the supply lines in the power section!
V1.00/EN/00741192/2021-03-30 [IPC 300]
In line with the operating conditions, the temperature may increase to 60 °C at
the terminals. As a result, the insulation of the lines connected at the terminals
may be damaged.
The affected lines must be heat-resistant up to at least 60 °C.
The cross section of the PE conductor must be at least as large as the cross
section of the voltage supply lines in the power section.
In the event that the protection conductor is not a component of the supply
line or its encasement, the selected conductor cross section may not be less
2
than 2.5 mm
(for mechanical protection) or not less than 4 mm
tion conductor is not protected mechanically).
v See VDE 0100 Part 540
The screw terminals for the voltage supply to the control electronics are de-
signed for a cross section between 0.2 mm
tor cross section must not be less than 0.5 mm
spond to the selected conductor cross section.
Power consumption max. 25 W.
lines
3 Electrical connection
2
2
to 4 mm
The minimum conduc-
2
. Fusing of the line must corre-
2
(if the protec-
33
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