Primus FX80 - Machine Protective Earth Connection and Equipotential Bonding

30 INSTALLATION, MAINTENANCE AND USER' MANUAL 540889_PUB_DATE_1_JUL_2011.DOC
Installation
Power supply protection device nominal
current (US)
Min. phase conductor
section in mm
2
(AWG)
Min. Protection conductor
section in mm
2
(AWG)
Automatic circuit breakers Fuses
16A (15A) 10A (10A) 1,5 mm² (AWG 15) 1,5 mm² (AWG 15)
20A (20A) 16A (15A) 2,5 mm² (AWG 13) 2,5 mm² (AWG 13)
25A (-) 20A (20A) 4 mm² (AWG 11) 4 mm² (AWG 11)
40A (40A) 32A (30A) 6 mm² (AWG 9) 6 mm² (AWG 9)
63A(-) 50A (50A) 10 mm² (AWG 7) 10 mm² (AWG 7)
80A 63A 16 mm² 16 mm²
100A 80A 25 mm² 16 mm²
125A 100A 35 mm² 25 mm²
Tab.10 Manufacturer’s recommended minimal conductor section
1. Protection conductor
2. Phase conductor
3. Phase conductor
4. Phase conductor
5. Neutral conductor
6. Molded tube
7. The stripped length of conductors
Fig.12 Adaptation of conductor ends of supply cable
1. Main switch
2. Turnbuckle
3. -
4. Sag of inlet cable
Fig.13 Connection of main power inlet
Machine protective earth connection and equipotential bonding
Independent of the supply cable, the washer must be connected to the laundry protective earth system
with a separate conductor. The protection conductor, enabling this connection, is not included with the washer.
If there are other washers/appliances with exposed conductive parts, which can be touched simultaneously,
make sure to make equipotential bonding between all these appliances. The external protective terminal for
this purpose is located on the rear panel of the machine frame, (fig.14., pos.3). The minimum protection
conductor’s cross section depends on the supply cable cross section and can be found in table 10. However,
for the protection purposes with the supply cable section of min. 4 mm2 we recommend to select
a larger conductor section, i.e. 6 mm².