EN
4 - INSTALLATION
THIS MANUAL IS PROPERTY OF SCM INDUSTRIA S.P.A - ANY TOTAL OR PARTIAL REPRODUCTION IS STRICTLY FORBIDDEN Cap. 4 Pag. 49/53
The yellow-green earth cable must have the same section as the power cable wires and must comply with the
current safety regulations of the country where the machine is installed.
DANGER-WARNING:
use the table indicated below and select the cable section and the “RETARDED INTERVENTION”
fuses to fit ahead of the machine.
ELECTRICAL INPUT (Amp.) CABLE SECTION
(mm²) AM FUSE
0 Æ 10 2,5 12 A AM
10 Æ 14 4,0 16 A AM
14 Æ 18 6,0 20 A AM
18 Æ 22 6,0 25 A AM
22 Æ 28 10,0 32 A AM
28 Æ 36 10,0 40 A AM
36 Æ 46 16,0 50 A AM
46 Æ 54 16,0 63 A AM
54 Æ 76 25,0 80 A AM
76 Æ 92 35,0 100 A AM
92 Æ 110 50,0 125 A AM
DANGER-WARNING:
- the machine is not protected against risks of electrocution due to indirect contact (ref. 6.3 of the
European Standard EN60204-1).
- The machine is not protected against overcurrent arising from a short circuit in the machine
feeder (ref. 7.2 of European Standard EN60204-1).
NOTE-INFORMATION:
the Customer is in charge of the protection against these risks, and must refer to specialised
technicians (electrician who installs electric systems).
NOTE-INFORMATION:
with regard to this, in the following systems:
1) TT type, Low Voltage, mains-powered
2) TN type, Medium Voltage, mains-powered
the machine power supply line must be protected by Residual Current Devices, suitably
coordinated with the user's earthing system (ref. IEC 60364-4-41; HD 60364-4-41).
The maximum value of the differential intervention current is equal to 300 mA for environments
with a greater risk of fire (to ensure protection against fire caused by currents dispersed towards
the ground).
For TN type systems, the system must be type TN-S with separate neutral and protective earth
conductors ( IEC 60364-4-482; HD 384.4.482 ).
SCM machines provide the end-customer with a TN-S power supply. Under different situations, transformers
(available as an option) or auto-transformers must be installed upstream the machine.
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