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EN/05.2019 © STULZ GmbH – all rights reserved
CYBERHANDLER 2 INSTALLATION, OPERATION AND MAINTENANCE MANUAL
Make sure that the phase rotation is correct, the rotating field must turn right!
For use of leakage-current (FI) circuit breakers, EN 50178 5.2.11.2 must be taken
into account. Only type B pulse-current FI circuit breakers are permitted. FI circuit
breakers do not provide protection against bodily harm during operation of the unit or
frequency converters.
The power supply system on site and the pre-fuses must be designed for the total
current of the unit (see data sheet of your unit). Make sure that the power supply cor-
responds to the indications on the rating plate and that the tolerances according to the
“Application limits” are not exceeded.
In addition to this, the asymmetry of phase between the conductors may amount to
2% maximally. The asymmetry of phase is determined by measuring the voltage differ-
ence between the phase conductors.
Cable
Connect to
Phase 1/2/3
Main switch L1/L2/L3
PE
PE Rail
Neutral
Neutral terminal (N)
Once connected, the cables must be secured by the pull relief screw.
The electric cable must be connected as following:
Fig 6-7: Power supply cable insertion in the electrical cabinet
Power supply connection
Specifications
Voltage supply:
400 V / 3 Ph / 50 Hz / N / PE / TNS / TNCS
Power supply cable:
cable cross section must be chosen according to electrical
data of the unit (available in the technical data sheet on request) and adapted to local
requirements, laying and cable length.
Cable routing and connection:
The electric cable must be introduced into the electrical cabinet from below, passing it
through the hole drilled on the bottom of the unit.
Before working with electrical wires, make sure they are de-energized The electric
cables are only to be connected by authorized specialist
6 4 Installation
6 4 1
Electrical connection
Opening for power
cable insertion
