6.4.3 Inserting the cable into the 1XB.. terminal box with ring seal
The following terminal boxes may be equipped with an onion sealing ring.
Table 6-5 Terminal boxes with onion sealing ring
Terminal box Onion sealing ring
1XB9600 Standard design
1XB1621, 1XB1631, 1XB1634 Optional
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 6-6 Strain relief device and sealing insert
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.
4. Prepare the end of the cable depending on the cable and its use, e. g. with a cable lug.
5. Connect the ends of the cables to the terminals in accordance with the circuit diagram.
The circuit diagram is located in the cover of the terminal box.
Refer to the "Connecting cables..." section for more information.
6. You might need to use a sleeve made of suitable sealing tape to modify the diameter where
it passes through the sealing insert. Push the sealing insert onto the prepared sleeve.
7. Insert the cable with the seal insert in position into the gland opening. Screw the strain relief
device together once the cable is in a concentric position in the gland opening.
Electrical connection
6.4 Introducing and routing the cables
SIMOTICS TN Series N-compact 1LA8
Operating Instructions 08/2017 77
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