6-8
ET 200L, ET 200L-SC and ET 200L-SC IM-SC Distributed I/O Device
EWA 4NEB 780 6009-02c
6.5
Details of Insulation Testing, Safety Class, and Degree of Protection
Insulation strength is demonstrated in the routine test with the following test
voltage in accordance with IEC 1131, Part 2:
Circuits with a Rated Voltage U
e
to Other
Circuits or to Ground
Test Voltage
0 V < U
e
v
50 V
500 VDC
Safety class II in accordance with IEC 536 (VDE 0106, Part 1) – that is, con-
nection to a protective conductor is not necessary.
IP 20 degree of protection in accordance with IEC 529 – that is, protection
against contact with standard test fingers.
Furthermore, it is protected against foreign matter having a diameter greater
than 12.5 mm.
No special protection against water.
Test Voltage
Safety Class
Protection Against
Foreign Matter and
Water
General Technical Data