Information On Insulation Tests, Protection Class And Degree Of Protection - Siemens SIMATIC KP400 Comfort Operating Instructions Manual

8.4.3.3

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 in
accordance with IEC 61131-2:
Circuits with a nominal voltage of U
circuits or ground
24 V
Protection class
Protection Class I in accordance with IEC 61140, i.e. PE/ground terminal to profile rail
required!
Protection against foreign objects and water
Degree of protection in accordance
with IEC 60529
Front
Rear panel
The front protection rating can only be guaranteed if the mounting seal lies flush against the
mounting cut-out.
Comfort Panels
Operating Instructions, 03/2012, A5E03404994-02
to other Test voltage
e
520 V DC or 370 V AC
For Ethernet connector: 1500 V AC
Explanation
When mounted:
IP65

Front face only Type 4X/Type 12 (indoor use only)

IP20
Touch protection test with standard test probes. There is no
protection against ingress by water.
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