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INSTALLATION
MANUAL
Table 4
(B2, C and E correction factors for cable grouping)
Number
of Cables
1
2
4
6
9
The total current included for using Table 1 should be the maximum rated current for the ma-
chine divided by the product of the different correction factors. Other correction factors may
also be applied ; consult the cable manufacturers.
Calculation : Example
- The machine has a rated current of 60 A.
- The ambient temperature is 45 °C ; Table 2 gives a correction factor of 0.91.
- Cable with rubber insulation : Table 3 gives a correction factor of 0.92.
- The cable is fixed directly to the wall (Column C), with 2 cables side by side. Table 4 gives a
correction factor of 0.85.
Taking Column C in Table 1 (wall fixing), we obtain a minimum cable section of : 3 x 25 mm².
M achine
Heating
type
FC48
Gas/Steam
FC48
Gas + boiler
FC48
Steam + boiler
FC48
Electric
FC48
Elec. + boiler
6. Installation/
Putting into service
B2
Seated in
Cable Duct
1,00 .........................1,00 ..............................1,00
0,80 .........................0,85 ..............................0,87
0,65 .........................0,75 ..............................0,78
0,57 .........................0,72 ..............................0,75
0,50 .........................0,70 ..............................0,73
Total current : ----------------------- = 84 A
Supply
voltage
380/415 V 3+E ~ 50/60 Hz
380/415 V 3+E ~ 50/60 Hz
380/415 V 3+E ~ 50/60 Hz
380/415 V 3+E ~ 50/60 Hz
380/415 V 3+T ~ 50/60 Hz
C
Wall Fixing
or Cable Trough
60 A
0,91 x 0,92 x 0,85
Installed
Rated
electrical
intensity
power
1.8 kW
3.5 A
7.8 kW
13.7 A
7.8 kW
13.7 A
19.8 kW
30 A
25.8 kW
40 A
05306004
1113
Notice
Date
E
Cable Tray
Main
Connection
switch
cable
section
3 x 12 A
4 x 2.5 mm²
3 x 16 A
4 x 2.5 mm²
3 x 16 A
4 x 2.5 mm²
3 x 40 A
4 x 6 mm²
3 x 50 A
4 x 10 mm²
19
6
Page
Fuse
3 x 12 A
3 x 16 A
3 x 16 A
3 x 40 A
3 x 50 A
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