General technical data
1.5 Information on insulation tests, protection class, degree of protection and rated voltage of the S7-300
S7-300 Automation System Module data
1-10 Manual, 08/2006, A5E00105505-04
1.5 1.5 Information on insulation tests, protection class, degree of protection
and rated voltage of the S7-300
Test voltage
Proof of dielectric strength must be provided in the type test at a test voltage to IEC 61131-2:
Circuits with rated voltage V
e
to other circuits
or ground.
Test voltage
< 50 V 500 VDC
< 150 V 2500 VDC
< 250 V 4000 VDC
Protection class
Protection class I to IEC 60536, i.e., a protective conductor must be connected to the
mounting rail!
Protection against the ingress of foreign matter and water
● Degree of protection IP 20 to IEC 60529, i.e., protection against contact with standard
probes.
No protection against the ingress of water.
1.6 1.6 Rated voltages of the S7-300
Rated operating voltages
The S7-300 modules operate at different rated voltages. The table shows the rated voltages
and corresponding tolerances.
Rated voltages Tolerance
24 VDC 20.4 VDC to 28.8 VDC
120 VAC 93 VAC to 132 VAC
230 VAC 187 VAC to 264 VAC
To Next Page
Loading...
Need help?
General
