Connections - Unit Sizes 4, 5 And; Power Connections - GE AF-650 GP Design Manual

7.2 Connections - Unit Sizes 4, 5 and 6

7.2.1 Torque
When tightening all electrical connections it is very important to tighten with
the correct torque. Too low or too high torque results in a bad electrical con-
nection. Use a torque wrench to ensure correct torque
Unit Size
41, 42, 43 and 44
51 and 52
61, 62, 63 and 64
Table 7.1: Torque for terminals

7.2.2 Power Connections

Cabling and Fusing
NB!
Cables General
All cabling must comply with national and local regulations on cable cross-sections and ambient temperature. UL applications require 75 °C copper conductors.
75 and 90 °C copper conductors are thermally acceptable for the frequency converter to use in non UL applications.
The power cable connections are situated as shown below. Dimensioning of cable cross section must be done in accordance with the current ratings and local
legislation. See the Specifications section for details.
For protection please see fuse in the tables of the fuse section. Always ensure that proper fusing is made according to local regulation.
Terminal
Mains
Motor
Load sharing
Brake
Mains
Motor
Load sharing
Brake
Mains
Motor
Load sharing
Brake
Regen
Illustration 7.18: Always use a torque wrench to tighten the
bolts.
Torque
19 Nm (168 in-lbs)
9.5 Nm (84 in-lbs)
19 NM (168 in-lbs)
9.5 Nm (84 in-lbs)
19 Nm (168 in-lbs)
19 Nm (168 in-lbs)
9.5 Nm (84 in-lbs)
19 Nm (168 in-lbs)
AF-650 GP Design Guide
Bolt size
M10
M8
M10
M8
M10
M10
M8
M10
7
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