Siemens SIMOTICS TN N-compact 1LH8 - Basic Rules; Figure 6-1 Water Drip Loop

6.1 Basic rules
The following generally applies to electrical connections:
● Ensure that there is a safe and reliable PE ground connection before starting any work.
● The connecting cables can be sealed and secured at every cable entry point into the
terminal box.
● Lay the connecting cables and in particular the PE conductor in the terminal box in an open
arrangement so that chafing of the cable insulation is prevented.
● Connect the machine in such a way that a permanent, safe electrical connection is
maintained. Avoid protruding wire ends.
● Lay and secure external auxiliary cables separately from the main cable. Elements with
cable ties may be present for this purpose.
● In case of high humidity or when installed outside, water drops can move along the cable
jacket and enter the motor through the cable entry and cable gland.
If you route the cable with an appropriate loop then water doesn't enter the terminal box,
but simply drips off.
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Figure 6-1 Water drip loop
Electrical connection
6.1 Basic rules
SIMOTICS TN Series N-compact 1LH8
64 Operating Instructions 06/2017