Connection With/Without Cable Lugs; Thread Sizes In The Terminal Box - Siemens SIMOTICS XP 1MB1 series Operating Instructions Manual

Electrical connection
6.2 Connecting the machine
6.2.1.8

Connection with/without cable lugs

In the case of terminals with terminal clamps, distribute the conductors in such a way that the
clamping heights on both sides of the fillet are about the same. This method of connection
requires that you must bend a single conductor in a U shape or use a cable lug. The same
applies to the inner and outer terminals of the ground conductor.
When connecting up using cable lugs, select their size corresponding to the required cable
cross-section and the stud size. An inclined arrangement is only permitted provided the
required air clearances and creepage distances are carefully maintained.
Remove insulation from the ends of the conductors so that the remaining insulation almost
reaches the cable lug.
Note
The direct contact between the cable lug surfaces and the contact nuts or contact screws
ensure that the connection can conduct current.
Short-circuit hazard
Live conductors released from the terminal board can cause short circuits. Death or serious
injury can result.
• You must bend single-core line conductors into a U shape in order to prevent the
• In order to prevent the cable lug from rotating, for a line connection using a cable lug,
6.2.1.9

Thread sizes in the terminal box

Thread size for additional entries, e.g. PTC thermistor or heater M16x1.5 or M20x1.5.
Other thread sizes are possible as an option.
74
WARNING
contact force being transferred at just one side.
angle single- or multi-core cables downwards through an angle of approx. 40°.
Shaft height
71 ... 90
100 ... 132
160 ... 180
200 ... 225
250 ... 315
355
Threaded entry
Size
M 16 x 1.5
M 25 x 1.5
M 32x1.5
M 40x1.5
M 50x1.5
M63x1.5
M 80x2
1LA5/6/7/9, 1LG4/6, 1MA6/7, 1MB..1/2/3/4/5 - SH 63 ... 355
Operating Instructions, 06/2018, A5E44455710A
Quantity
1
2
2
2
2
2