Siemens SITRANS LG260 Operating Instructions Manual page 20

Fig. 9: Connection steps 5 and 6 - Single chamber housing
Fig. 10: Connection steps 5 and 6 - Double chamber housing
6. Insert the wire ends into the terminals according to the wiring plan
Information:
Solid cores as well as flexible cores with wire end sleeves are insert-
ed directly into the terminal openings. In case of flexible cores without
end sleeves, press the terminal from above with a small screwdriver,
the terminal opening is then free. When the screwdriver is released,
the terminal closes again.
You can find further information on the max. wire cross-section under
"Technical data - Electromechanical data"
7. Check the hold of the wires in the terminals by lightly pulling on
them
20 SITRANS LG260 - Operating Instructions PBD-51041057