4 tightening torque for fixing screws – Siemens MICROMASTER 411 User Manual
Page 96
7 Specifications
Issue 03/01
MICROMASTER 411 & COMBIMASTER 411 Operating Instructions
96
6SE6400-5CA00-0BP0
7.3
Tightening Torque, Cable cross sections for Power
Supply and Motor Terminals
Table 7-4
Power Supply & Motor Terminal Wire Sizes/Tightening Torques
Terminals
Units of
measurement
Case Size B
Case Size C
[Nm] 1,3 1,3
Terminal Tightening Torque
[lbf.in] 12
12
[mm
2
] 1,5
2,5
Minimum Cable Cross Section
[AWG] 16
14
[mm
2
] 4
4
Maximum Cable Cross Section
[AWG] 12
12
7.4
Tightening Torque for Fixing Screws
Table 7-5
Fixing Screw Recommended Tightening Torque
Description
Units of
measurement
Case Size B
Case Size C
[Nm]
2,5 (M5) 2,5 (M5)
Inverter Cover Screws
[lbf.in]
21,3 (M5) 21,3 (M5)
[Nm]
0,8 (M3) 0,8 (M3)
Filter Board Retention Screws
[lbf.in]
7,0 (M3) 7,0 (M3)
[Nm]
0,8 (M3) 0,8 (M3)
I/O Board Retention Screws
[lbf.in]
7,0 (M3) 7,0 (M3)
[Nm] 1,5/2,5
M4/M5
2,5
(M5)
Terminal Housing to Motor Fixing
Screws
[lbf.in] 10,6/21,3
M4/M5
21,3 (M5)