Information On Insulation Tests, Protection Class, Degree Of Protection And Rated Voltage - Siemens SIMATIC S7-1500 System Manual

Technical data

15.6 Information on insulation tests, protection class, degree of protection and rated voltage

15.6 Information on insulation tests, protection class, degree of protection
and rated voltage
Insulation
The insulation is designed in accordance with the requirements of EN 61131-2: 2007.
Note
Galvanic isolation with 707 V DC (Type Test) is tested for modules with 24 V DC supply
voltage (SELV/PELV).
Pollution degree
The SIMATIC Drive Controller is designed for pollution degree 2 in accordance with
EN 61800-5.
This means that the components must be protected from conductive contamination, for
example, by installing them in a control cabinet with degree of protection IP54 pursuant to
IEC 60529 or Type 12 pursuant to NEMA 250. If the occurrence of conductive contamination
can be ruled out, a correspondingly lower degree of protection for the control cabinet is
permitted.
Protection class
Protection class of the SIMATIC Drive
Controllers
Protection class III
Degree of protection
The SIMATIC Drive Controller has the degree of protection IP20 in accordance with
IEC 60529, open type pursuant to UL/CSA:
● Protection against contact with standard test finger
● Protection against foreign objects with diameters in excess of 12.5 mm
● No protection against water
276
Note
Protection class III equipment may only be connected to
SELV or PELV current sources.
System Manual, 11/2019, A5E46600094-AA
SIMATIC Drive Controller