6.4.6 Cable cross-sections
The motor cable cross-section depends
• on the form of the output current (e.g. non-sinusoidal)
• on the real effective value of the motor current.
• on the cable length.
• on the type of used cable.
• on ambient conditions such as bundling and temperature.
6.4.6.1 Cable cross-sections 400 V class
Rated cross-section in
mm
2
Rated current
1)
in A Number of cables per
terminal
95 250 2
120 292 2
150 335 2
185 382 2
240 453 2
Table 22: Cable cross-sections 400 V class
1) Valid for multicore cables. The factors for ambient temperature, parallel cable laying, current carry-
ing capacity and laying factor are not taken into consideration for the technical data of the current.
6.4.6.2 Cable cross-section 690 V class
Rated cross-section in
mm
2
Rated current
1)
in A Number of cables per
terminal
50 168 2
70 207 2
95 250 2
120 292 2
150 335 2
185 382 2
Table 23: Cable cross-section 690 V class
1) Valid for multicore cables. The factors for ambient temperature, parallel cable laying, current carry-
ing capacity and laying factor are not taken into consideration for the technical data of the current.
70
ELECTRICAL INSTALLATION
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