Details Of Insulation Testing, Safety Class, And Degree Of Protection - Siemens Metro 21 M216KA Operator's Manual

General T echnical Data
6.5

Details of Insulation Testing, Safety Class, and Degree of Protection

Test Voltage
Safety Class
Protection Against
Foreign Matter and
Water
6-8
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
Circuits or to Ground
0 V < U 50 V
e
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.
ET 200L, ET 200L-SC and ET 200L-SC IM-SC Distributed I/O Device
to Other Test Voltage
e
500 VDC
EWA 4NEB 780 6009-02c