Inserting And Routing The Cables; Bringing Cables Into The Terminal Box 1Xb; Table 6-2 Connection Technology (With Cable Lug / Connection Without Cable Lug); Figure 6-8 Strain Relief Device And Sealing Insert - Siemens SIMOTICS FD 1LL1 Operating Instructions Manual

Electrical connection

6.5 Inserting and routing the cables

6.5 Inserting and routing the cables
Table 6-2
Terminal box
GT640
1XB1621
1XB1631
1XB7730
1XB7731
1XB7740
1XB7750
6.5.1 Bringing cables into the terminal box 1XB... with sealing insert with break-off ring
The 1XB1621, 1XB1631 terminal boxes can be equipped optionally with a sealing insert with
break-off ring. The connecting cable is sealed at the cable entry location using a cut-out sealing
insert and is fastened using a strain relief device.
Bringing cables into the terminal box and connecting them
The terminal box is opened, the cable cut to the correct length and stripped back. Make sure
that no external forces are acting on the cable connection.
Figure 6-8
Proceed as follows when connecting the cables:
1. Remove the top part of the strain relief
2. Cut the seal insert
3. Pull the sealing insert over the end of the cable.
4. Prepare the end of the cable depending on the cable and its use, e.g. with a cable lug.
80
Connection technology (with cable lug / connection without cable lug)
Strain relief device and sealing insert
②
of the strain relief . The strain relief device can be located either in the terminal box or
externally. If necessary, switch the direction sense of the strain relief device.
①
so that its opening is 1 to 3 mm smaller than the diameter of the cable.
With cable lug (Page 82)
③
and release the fixing screws for the bottom part
Connection
Without cable lug (Page 83)
Operating Instructions 01/2019
SIMOTICS FD 1LL1