Siemens SIMOTICS FD 1LH1, Operating Instructions & Installation Instructions

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6.3.7 Terminal box 1XB7750
Figure 6-8 Terminal box 1XB7750
The connecting cables are introduced into the 1XB7750 terminal box through the cable glands
with threaded holes 8 x M72 x 2 and 3 x M25 x 1.5. The cable glands are not included in the
standard scope of supply.
You can find additional information here:
● Bringing cables into the terminal box 1XB... with cable gland (Page 88)
● Connecting cables with cable lugs (Page 89)
● Connecting cables without cable lugs (Page 90)
6.3.8 Rotating the terminal box
Depending on the terminal box and version, you can rotate the terminal box through ±90° in
accordance with the connection direction. The implementation on the other motor side is
possible only with the support of the Service Center (Page 163). If you want to rotate a terminal
box not listed below, then also contact the Service Center.
Rotating the terminal box depends on the mount and the cross-section of the internal stator
cables as well as the terminal box type:
● 1XB7730
– With installed internal stator cables, you can rotate the terminal box through ±90°.
● 1XB7731
– For six or fewer cables, you can rotate the terminal box with installed stator cables
through ±90°.
– For more than six cables, you must remove the internal stator cables before rotation.
Electrical connection
6.3 Terminal box
SIMOTICS FD 1LH1
Operating Instructions 01/2019
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