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5 Installation at Site
5.5 Electrical connection
DANGER
Electrical connection work by unqualified personnel
Danger of death from electric shock!
▷ Always have the electrical connections installed by a trained and qualified
electrician.
▷ Observe regulations IEC 60364 .
WARNING
Incorrect connection to the mains
Damage to the power supply network, short circuit!
▷ Observe the technical specifications of the local energy supply companies.
NOTE
Installing a motor protection device is recommended.
NOTE
If a residual current device is installed, observe the operating manual for the
frequency inverter.
Lightning protection
▪ Electrical installations must be protected against overvoltage (compulsory since
14 December 2018) (see DIN VDE 0100-443 (IEC60364-4-44:2007/A1:2015,
modified) and DIN VDE 0100-534 (IEC 60364-5-53:2001/A2:2015, modified).
Whenever modifications are made to existing installations, retrofitting a surge
protective device (SPD) in accordance with VDE is mandatory.
▪ A maximum cable length of 10 metres should not be exceeded between the
surge protective device (usually type 1, internal lightning protection) installed at
the service entrance and the equipment to be protected. For longer cables,
additional surge protective devices (type 2) must be provided in the sub-
distribution board upstream of the equipment to be protected or directly in the
equipment itself.
▪ The associated lightning protection concept must be provided by the operator or
by a suitable provider commissioned by the operator. Surge protective devices
can be offered for the control units on request.
Wiring diagram
The wiring diagrams are located in the control cabinet, which is where they must be
stored.
The product literature of the switchgear and controlgear assembly supplied with the
system includes a list of the electrical components installed. When ordering spare
parts for electrical components, always indicate the number of the wiring diagram.
Terminal assignment
For the terminal assignment refer to the wiring diagram.
5.5.1 Sizing the power cable
Determine the cross-section of the power cable based on the total rated power
required.
KSB Delta Macro
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