Siemens SIMOTICS FD 1LL1, Operating Instructions & Installation Instructions

Page: 92 / 188

6.5 Inserting and routing the cables
Table 6-3 Connection technology (with cable lug / connection without cable lug)
Terminal box Connection
GT640
With cable lug (Page 95) Without cable lug (Page 96)
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.
1P
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Figure 6-8 Strain relief device and sealing insert
Proceed as follows when connecting the cables:
1. Remove the top part of the strain relief
③
and release the fixing screws for the bottom part
of the strain relief
②
. 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.
2. Cut the seal insert
①
so that its opening is 1 to 3 mm smaller than the diameter of the cable.
3. Pull the sealing insert over the end of the cable.
Electrical connection
6.5 Inserting and routing the cables
SIMOTICS FD 1MH1
92
Operating Instructions 08/2017