Siemens SIMATIC ET 200SP - Page 101

Wiring
6.6 Wiring rules
Distributed I/O system
100 System Manual, 09/2019, A5E03576849-AJ
Line protection
The line protection of the SIMATIC ET 200SP motor starter is provided for the motor
outgoing feeder cable when the following condition is met:
The cross-section of the motor outgoing feeder cable must be dimensioned for the load
ratios of the motor and for the cable-laying method.
Comply with national regulations. The user is responsible for the correct selection and
dimensioning of the motor connection cable to DIN VDE 0100 and DIN VDE 0298-4 and/or
UL 508.
The conductor protection for the incoming feeders must be ensured by the owner of the
installation depending on the cross-section.
Cable temperature measurement threshold
Note
Cable temperature measurement threshold
When choosing a cable, remember that
the cable temperature in operation can be up to
30
°C higher than the ambient temperature of the ET200SP system (example: at an ambient
temperature of 60
°C, a connection conductor must be dimensioned for a temperature range
of at least 90
°C).
You should
specify other connection types and material require
ments based on the electrical
characteristics of the circuits you use and the installation environment.