Fastener Size Tightening Torque Value
English Metric Newton-Meters
(Nm)
FT-LB IN-LB
1-8 600.0 480.0
* These values do not apply when this hardware is used on installing SINAMICS Perfect Harmony GH180 power cells or power
modules. For the required torque values in these instances, refer to the maintenance chapter of this manual or to the System
drawings provided with this drive.
** These sizes are only torqued when used on ground wire.
*** #8 bolts used in secondary connections on CTs are torqued to 15 in-lbs.
Note
Input Conductor Sizing
Be sure to size the input conductors appropriately for the particular application, taking into
account the length of the input power feed as well as local electrical code and local standards.
Labels located near the connections recommend the use of 75 °C conductors.
Table 7-2 Drive Torque Specications (Stainless Steel Hardware, Mechanical Connections)
English Sizes Metric Sizes
(mm)
Newton-Meters
(Nm)
FT-LB IN-LB
10-32 5 27
1/4-20 6 7.2 64
5/16-18 8 12.7 9 112
3/8-16 10 22.7 17 200*
7/16-14 --- 36.2 27 320
1/2-13 12 50.2 37 444
9/16-12 14 65.1 48 576
5/8-11 16 105.8 78 936
3/4-10 18 146.4 108 1296
20 333.5 246 2952
7/8-9 22 223.7 165 1980
--- 24 542.3 400 4800
1-8 (1.0) 27 329.5 243 2916
Note:
• CTs that are mounted with 3/8 inch bolts will only be torqued to 100 in-lbs.
• These values do not apply when installing mechanical connections on GH180 Perfect Harmony™ power cells.
See also
Remove and Replace (Page 71)
Electrical Connections
7.2 Installation External Wiring
Type 6SR5 Air-Cooled
40 Operating Instructions, AK, A5E39390112
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