MP 277 - Service, Support Download

Transcript
Planning application
3.4 Specifications for Insulation Tests, Protection Class and Degree of Protection
3.4
Specifications for Insulation Tests, Protection Class and Degree of
Protection
Test voltages
Insulation stability is demonstrated in the type test with the following test voltages in
accordance with IEC 61131-2:
Circuits with a nominal voltage of Ue to other
circuits or ground
Test voltage
< 50 V
500 V DC
Protection class
Protection Class I in accordance with IEC 60536, i.e. protective conductor connection to
profile rail required.
Protection against foreign objects and water
Degree of protection in accordance with
IEC 60529
Explanation
Front
When mounted:
Rear panel
•
IP65
•
Enclosure Type 4X/Type 12 (indoor use only)
IP20
Touch protection test 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.
3.5
Rated voltages
The following table shows the rated voltage and the corresponding tolerance range.
Nominal voltage
Tolerance range
+24 VDC
20.4 V to 28.8 V (–15 %, +20 %)
MP 277
40
Operating Instructions, 07/2014, A5E02479740-02
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