23
The power cables, electrical protections and line fuses must be sized in accordance with what is reported in the unit's wiring
diagram and in the electrical data contained in the technical characteristics table (see Paragraph 11).
Use a dedicated power line, do not power the appliance through a line to which other users are connected. Fasten the power
cables securely and make sure they do not come into contact with sharp corners. Use double insulated cables with copper wires.
The ground connection must be carried out first during the connection phase, vice versa it must be removed last when the unit is
disconnected. In the event of any loosening of the power cable, it must be ensured that the tension of the active conductors
takes place before that of the ground wire.
A main switch or a disconnection device with adequate breaking capacity must be installed on the power supply line, which has a
separation of the contacts in all the poles. The differential protection switch must be compatible with inverter appliances, it is
recommended to install a type B differential switch, the installation of a different type switch could give rise to untimely trips.
The following table shows the recommended cable sections for a maximum length of 30 m. In any case, depending on type of
installation, the location and the length of the cables (be it less than or greater than 30m), the electrical system designer will
make an appropriate choice.
Power supply
Model
Recommended cable
section (max length 30
m)
Recommended tightening torque
230V / 1ph
HPE R32
04
3 x 2,5 mm
2
L/N: 3,4 Nm – PE: 1 Nm
230V / 1ph
HPE R32
06 /
HPE R32
08
3 x 4 mm
2
L/N: 3,4 Nm – PE: 1 Nm
230V / 1ph
HPE R32
10 /
HPE R32
12
3 x 4 mm
2
L/N: 3,4 Nm – PE: 1 Nm
230V / 1ph
HPE R32
14 /
HPE R32
16
3 x 6 mm
2
L/N: 3,4 Nm – PE: 1 Nm
400V / 3ph
HPE R32
10T /
HPE R32
12T
5 x 2,5 mm
2
L1/L2/L3: 3,4 Nm – N/PE: 1 Nm
400V / 3ph
HPE R32
14T /
HPE R32
16T
5 x 2,5 mm
2
L1/L2/L3: 3,4 Nm – N/PE: 1 Nm
400V / 3ph
HPE R32
18T
5 x 4 mm
2
L1/L2/L3: 3,4 Nm – N/PE: 1 Nm
The units comply with the electromagnetic compatibility specifications, however the designer of the electrical system must fulfil
appropriate assessments to ensure the absence of interference.
