Siemens Simatic S7-1500 / ET 200MP - Information on Insulation Tests, Protection Class, Degree of Protection and Rated Voltage

Technical specifications
16.6 Information on insulation tests, protection class, degree of protection and rated voltage
Automation system
354 System Manual, 01/2023, A5E03461182-AK
Information on PFDavg, PFH values for S7-1500 F
PFDavg and PFH values for F-CPUs at operating altitudes up to 3,000 m or 5,000 m. Below
you will find the probability of failure values (PFDavg and PFH values) for the F-CPUs with a
service life of 20 years and with a repair time of 100 hours:
Operation in low demand mode
low demand mode
According to IEC 61508:2010:
PFDavg = Average probability of dangerous failure on
demand
Operation in high demand or continuous mode
high demand/continuous mode
According to IEC 61508:2010:
PFH = Average frequency of a dangerous failure [h
-1
]
< 2E-05
< 1E-09
16.6 Information on insulation tests, protection class, degree of
protection and rated voltage
Insulation
The insulation is designed in accordance with the requirements of EN 61010-2-201.
Note
In the case of modules with 24 V DC (SELV/PELV) supply voltage, galvanic isolations are tested
with 707 V DC (type test).
Pollution degree/overvoltage category in accordance with EN 61131-2: 2007 and IEC 61010-2-201
• Pollution degree 2
• Overvoltage category: II
Protection class according to IEC 61131-2: 2007 and IEC 61010-2-201
The S7-1500 automation system/ET 200MP distributed I/O system meets protection class I
and contains parts of protection classes II and III.
Degree of protection IP20
Degree of protection IP20 in accordance with IEC 60529 for all modules of the S7-1500
automation system/ET 200MP distributed I/O system:
• Protection against contact with standard test fingers
• Protection against foreign objects with diameters in excess of 12.5 mm
• No protection against water