JUMO 709050 IPC IGBT Power Converter IPC 70A Operating Manual - Manual (Page 23)

02.08 [IGBT Power Converter 70A] 23
4 Electrical connection
4.1.1 Suitable cables and cross-sections
PE conductor The cross-section of the PE conductor must be at least as large as the cross-
section of the voltage supply conductors to the power section. If the
protective earth (PE) conductor is not part of the supply cable or its sheathing,
the chosen conductor must have a cross-section of at least 2.5 mm
2
(if
mechanically protected) or at least 4mm
2
(if the PE conductor is not
mechanically protected).
v see VDE 0100 Part 540
Control section The screw terminals for the voltage supply to the control section are laid out
for a conductor cross-section between 0.5 and 2.5 mm
2
. The minimum
conductor cross-section must not be less than 0.5
2
mm. Fusing of the cable
must correspond to the selected conductor cross-section.
Power consumption is approx. 50 VA.
Power section
Calculation
formula
Example
H
The minimum conductor cross-section chosen must be adequate
for the maximum load current. The connection is made to the
copper busbars of the converter by means of cable lugs and a
screw connector.
We recommend the use of a shielded cable to reduce EMC
interference emission.
A
The cable cross-section in the load and choke circuits must not be
smaller than the cross-section of the supply leads to the power
section!
maximum load power consumption
Voltage supply to power section
I
Supply
= + 2A
3000 W (heater load)
230V (voltage supply to the power section)
I
Supply
= + 2A =
I
Supply
= 13A + 2A = 15A