Electrolux WP4700H - Page 46

0618 19
7
Notice
Date Page
05201053
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 machi-
ne 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 fi xed 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 fi xing), we obtain a minimum cable section of : 3 x 25 mm².
It is necessary to use an HPI type differential circuit breaker with a high level of immu-
nity to prevent inadvertent tripping. For cable cross-section and circuit breakers with
correction factors, the cross-section of the circuit breaker cables and gauge must be
adjusted
The cable section and rating values of the table circuit breaker below are without correc-
tion factor. Adjust the circuit breaker cable and gauge section according to the installa-
tion by a professional.
Machine
Type
Heating Supply Voltage Installed
Power
Rated
Intensity
Main
Switch
Connection
Cable
Section
Differential
circuit
breaker
HPI type
30mA
700
700
Steam/T.F.
Electric
380/415 V 3+T ~ 50-60 Hz
380/415 V 3+T ~ 50-60 Hz
11.7 kW
65.7 kW
27 A
100.5 A
3 x 40 A
3 x 125 A
4 x10mm²
4x 35 mm²
3x32A
3x125A
900
900
Steam/T.F.
Electric
380/415 V 3+T ~ 50-60 Hz
380/415 V 3+T ~ 50-60 Hz
15.7 kW
87.7 kW
33 A
135 A
3 x 40 A
3 x 160 A
4 x10mm²
4x 35 mm²
3x40A
3x160A
1100
1100
Steam/T.F.
Electric
380/415 V 3+T ~ 50-60 Hz
380/415 V 3+T ~ 50-60 Hz
19 kW
91 kW
42 A
140 A
3 x 50 A
3 x 160 A
4 x10mm²
4x 50 mm²
3x50A
3x160A