Connecting The Ground Conductor; Figure 3-3 Detailed View: Connecting Points For Ground Conductor (1 + 2) - Siemens 1PH728 Operating Instructions Manual

[ID: 332.01]
3.3.3

Connecting the ground conductor

General
The cross-section of the ground conductor of the motor must comply with the regulations for
electrical installations, e.g. DIN EN IEC 60204-1.
Wiring
Connect the ground conductor to the end shield of the motor. A clamping lug is provided for
this purpose at the appropriately marked connecting point for the ground conductor (1 + 2).
This lug can be used for connecting stranded conductors with cable lugs or ribbon cables
with an appropriately shaped conductor end.
The ground conductor must also be connected to the end shield of the motor.
Figure 3-3
When making connections, ensure that
● The contact surface is clean and protected with a suitable anti-corrosion agent (e.g. acid-
● the flat and spring washers are located under the bolt head.
● the minimum necessary screw-in depth and the tightening torque for the clamping bolts
Mandatory tightening torques:
Bolt
M8x30
[ID: 336]
A5E00177602A AD
Siemens AG Operating Instructions 2.02 1PH728
Siemens Hardware
Detailed view: Connecting points for ground conductor (1 + 2)
free Vaseline).
must be maintained.
Screw-in depth
> 8 mm
Transport, assembly, and connection
3.3 Electrical connection
Tightening torque
20 Nm
33