3.3 Electrical Installation
3.3.1 Cables General
CAUTION
Cables general:
Always comply with national and local regulations on cable cross-sections.
Frame
size
200-240 V
[kW]
380-500 V
[kW]
525-690 V
[kW]
Cable for Tightening torque
[Nm]
B1 5.5-7.5 11-15 15
Mains, motor cables 1.8
Relay 0.5-0.6
Ground 2-3
B2 11 18.5-22 18.5-22
Mains 4.5
Motor cables 4.5
Relay 0.5-0.6
Ground 2-3
B3 5.5-7.5 11-15 15
Mains, motor cables 1.8
Relay 0.5-0.6
Ground 2-3
B4 11-15 18.5-30 18.5-22
Mains, motor cables 4.5
Relay 0.5-0.6
Ground 2-3
C3 18.5-22 - -
Mains, motor cables 10
Relay 0.5-0.6
Ground 2-3
Table 3.6 Tightening Torque
3.3.2 Removal of Knockouts for Extra Cables
•
Remove cable entry from the frequency converter (avoiding foreign parts in the frequency converter when
removing knockouts)
•
Support cable entry around the knockout that should be removed
•
The knockout can now be removed with a strong mandrel and a hammer
•
Remove burrs from the hole
•
Mount cable entry on frequency converter
How to Install Operating Instructions
MG34M422 Danfoss A/S © Rev. 2013-07-03 All rights reserved. 17
3 3
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