0309
11
7
4819
4819
2.9 kW
35.75 kW
5 A
52 A
4 x 2.5 mm²
4 x 16 mm²
3 x 16 A
3 x 63 A
4825
4825
2.9 kW
46.10 kW
5 A
67 A
4 x 2.5 mm²
4 x 16 mm²
3 x 16 A
3 x 80 A
4832
4832
3.2 kW
56.75 kW
5 A
82 A
4 x 2.5 mm²
4 x 25 mm²
3 x 16 A
3 x 100 A
Notice
Date Page
05102004
INSTALLATION
MANUAL
7. Installation
Table 4
(B2, C and E correction factors for cable grouping)
B2
C
E
Number
Seated in
Wall Fixing
Cable
of cables
Cable Duct
or Cable Trough
Tray
1
1.00
1.00
1.00
2
0.80
0.85
0.87
4
0.65
0.75
0.78
6
0.57
0.72
0.75
9
0.50
0.70
0.73
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.
- Rubber cable insulant : 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.
60 A
Total current :
----------------------- = 84 A
0.91 x 0.92 x 0.85
Taking Column C in Table 1 (wall fixing), we obtain a minimum cable section of :
3 x 25 mm².
Machine
type
Heating
Supply Voltage
Installed
Power
Rated
Intensity
Connection
Cable Section
Main Circuit
Breaker or Fuse
Steam/Gas
Electric
380/415 V 3+E ~ 50/60Hz
380/415 V 3+E ~ 50/60Hz
Steam/Gas
Electric
380/415 V 3+E ~ 50/60Hz
380/415 V 3+E ~ 50/60Hz
Steam/Gas
Electric
380/415 V 3+E ~ 50/60Hz
380/415 V 3+E ~ 50/60Hz
