Siemens SIMOTICS XP - Mounting Position of Sheet Metal Nuts in Screw-Type Connections

Electrical connection
6.5 Conductor connection
1MB..5/6 shaft height 71 ... 355
Operating Instructions, 07/2020, A5E41926185A
77
Connection type
Terminal box Ex db
Terminal studs Cable cross-section
mm²
M6
4 ... 25
Connection of a single conductor
M4
1 ... 6
M5
1 ... 10
M6
4 ... 16
Connecting 2 conductors with the same
thickness using a terminal clamp
M4
Not permitted
M5
Not permitted
M6
4 ... 16
Terminal studs A
Terminal thickness
inserted screws
mm
B
Terminal thickness
longer screws
1)
mm
M4
0 ... 1.5
> 1.5 ... 3.5
M5
0 ... 1.5
> 1.5 ... 3.5
M6
0 ... 2
> 2 ... 4
Terminal thickness (thickness of the cable lug or conductor diameter and/or connecting bars for Y/D motor connection) are
listed for the motor connection in column A.
Use longer screws for higher terminal thicknesses as listed in column B.
1) Longer screws are provided in the terminal box.