6 Electrical connection
57BA6820378-03 EN
5. Insert a sufficient length of cable through the cable gland and rubber gas-
ket and tighten the cable gland so that moisture from outside cannot pen-
etrate the terminal box.
Figure37: Closing the cable gland
NOTICE
Malfunction
Tightening the cable glands too tightly may result in line breaks and short
circuits.
► Tighten the cable gland with a torque of 4.5Nm.
NOTICE
Malfunction
Unsealed or missing cable glands may result in dirt and moisture penetrat-
ing the device. This will lower or invalidate the protection class. Corrosion
and malfunctions may occur.
► Remove transport dust-protection rings from unused cable glands and
seal the cable glands using a dummy plug.
► Alternatively, replace the entire cable gland with a sealed locking screw.