30 • Recommended Wiring diagrams
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Max. Motor FLA
[A]
Min. Dimensions for
Copper Cables
[mm
2
]
Terminal
Screw
Mechanical
Torque
[Nm]
390 3 x 185 + 95 N2XY M12 60
460 3 x 240 + 120 N2XY M12 60
580 2 x (3x 150 + 70)N2XY M12 60
820 3 x (3x 185+ 95) N2XY M12 60
950 3 x (3x 240 + 120) N2XY M12 60
1100 4 x (3x 240 + 120) N2XY M12 60
1400 5 x (3x 240 + 120) N2XY M12 60
1800 8 x (3x 240 + 120) N2XY M12 60
2500 8 x (3x 300 + 150) N2XY M16 120
4.21 LR Recommendations for Marine, Off-shore or Industrial Use
System design needs to
take into account the power supply source and the motor drive together with the
electronic soft starter.
Particular features to be considered are torque production, harmonic production and their consequential
effects and EMC. These points are relevant for marine, off-shore or industrial use.
4.22 Inside Delta Mode
4.22.
1 General Information
When the RVS-DN is installed Inside Delta, the individual phases of the RVS-DN are connected in series with
the individual motor windings (6 conductor connections as with the star-delta starter). The RVS-DN must only
conduct about 58 % (=1\√3) of the rated motor current. This allows the use of a significantly smaller RVS-DN.
Note that although when connected Inside Delta the current is reduced by 1.73 (√3), you should
choose an RVS-DN as if current is reduced only by 1.5. (1/1.5=0.667=67%)
For example:
For a motor with a rated current of 870A motor, a 950A starter will be selected to operate In-Line.
For Inside Delta RVS-DN, we calculate (870 x 67% = 580A) and select a 580A starter.
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