Planning use
3.4 Information on insulation tests, protection class and degree of protection
OP 73micro, TP 177micro (WinCC flexible)
Operating Instructions, 09/2007, 6AV6691-1DF01-0AB0
37
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 Test voltages
Circuits with a nominal voltage of U
e
to other
circuits or ground
Test voltage
< 50 V 500 V DC
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
Explanation
Front panel
Rear panel
IP65 in mounted state
IP20
protection against contact with standard test probes
There is no protection against ingress by water.
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
≤ 0.5 mm.
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