Information On Insulation Tests, Protection Class And Degree Of Protection - Siemens SIMATIC HMI OP 73micro Operating Instructions Manual

3.4 Information on insulation tests, protection class and degree of
protection
Test voltages
Insulation strength is demonstrated in the type test with the following test voltages
conforming to IEC 61131-2:
Table 3-4
Circuits with a nominal voltage of U
circuits or ground
< 50 V
Class of protection
Protection Class I conforming to IEC 60536, i.e. grounding conductor to profile rail required!
Protection from foreign objects and water
Degree of protection conforming to
IEC 60529
Front panel
Rear panel
The degree of protection provided by the front side can only be guaranteed when the
mounting seal lies completely against the mounting cut-out.
NOTICE
Degree of protection IP65
The degrees of protection are only guaranteed when the following is observed:
• The material strength at the mounting cut-out is at least 2 mm.
• The deviation from the plane of the mounting cut-out in an installed HMI device is
OP 73micro, TP 177micro (WinCC flexible)
Operating Instructions, 09/2007, 6AV6691-1DF01-0AB0

3.4 Information on insulation tests, protection class and degree of protection

Test voltages
≤ 0.5 mm.
to other Test voltage
e
500 V DC
Explanation
IP65 in mounted state
IP20
protection against contact with standard test probes
There is no protection against ingress by water.
Planning use
37