11
7425MUM651
Model: QBS
- Use and Maintenance Manual
Rev. 02
3.5
E
LECTRICAL CONNECTIONS
The machine must be connected to the electricity following the electrical diagram and
conforming to the current laws and regulations in the place of installation.
•
The voltage, frequency and number of phases must conform to the data shown on the machine's
identification plate;
•
The power supply voltage must not vary by more than ±10% from its nominal value;
•
The frequency must not vary by more than ±1% from its nominal value (±2% for brief periods);
•
The imbalance between power phases must be <2%;
•
Upstream from the electrical panel, install a differential switch (IDn=0.03A) (main power
switch) and slow-blow fuses with the specifications shown on the electrical diagram;
•
Use wires of the section shown on the electrical diagram and in the following table.
Attention!
Never change the internal electrical connections, as the warranty will be
immediately voided.
Important!
Screw the wires solidly to the terminal strip of the cut-off switch and lock the
wire with a cable-gland.
Important!
Make the cable entering the machine enters the cable-gland from below: this
prevents rain from dripping inside the machine.
Important!
The earth connection is mandatory: connect the earth wire to the terminal
provided in the electrical panel. The ground wire must be longer than the other
wires so that it will be the last one to be pulled if the device holding the cable
loosens.
