Siemens SIMATIC S7-300 Module data Reference Manual

General Technical Specifications
1-12
Programmable Logic Controllers S7-300 Module Data
A5E00105505-03
1.5 Information on Insulation Tests, Protection Class and Degree of
Protection
Test voltages
Insulation stability must be demonstrated in the type test with the following test
voltages in accordance with IEC 61131-2:
Table 1-8 Test Voltages
Circuits with rated voltage U
e
to other
circuits or to ground
Test Voltage
< 50 V 500 VDC
< 150 V 2500 VDC
< 250 V DC 4000 V
Protection class
Protection Class I according to IEC 60536 – in other words, protective conductor
connection to rail necessary
Protection against ingress of foreign bodies and water
Degree of protection IP 20 according to IEC 60529, that is, protection against
contact with standard probes.
There is no special protection against the ingress of water.

Siemens SIMATIC S7-300 Module data Specifications

General

Series	S7-300
Manufacturer	Siemens
Protection Class	IP20
System	SIMATIC S7-300
Digital Inputs	Varies by module
Digital Outputs	Varies by module
Analog Inputs	Varies by module
Analog Outputs	Varies by module
Central Processing Unit	Varies by CPU model
Supply Voltage	24V DC or 120/230V AC
CPU Type	Varies (e.g., CPU 312, CPU 315, etc.)
Memory	Varies by CPU model
Communication Interfaces	MPI, PROFIBUS
Programming Languages	LAD, FBD, STL, SCL, GRAPH
Operating Temperature	0°C to 60°C
Storage Temperature	-40°C to 70°C
Relative Humidity	10% to 95% (non-condensing)