Siemens SIMATIC ET 200pro - 5.2 Mechanical and climatic environmental conditions

General technical specifications
6.5 Specifications for insulation tests, protection class, degree of protection, and rated voltage
ET 200pro distributed I/O EtherNet/IP interface module
74 Manual, 03/2016, A5E32861915-AB
6.5
Specifications for insulation tests, protection class, degree of
protection, and rated voltage
Test voltage
The proof of dielectric strength is provided in a type test with the following test voltage
according to IEC 61131-2:
Circuits with rated voltage V
e
against other
circuits or ground.
Test voltage
< 50 V
500 VDC
< 150 V 2500 VDC
< 250 V
4000 VDC
Pollution degree/overvoltage category according to IEC 61131-2
● Pollution degree 2
● Overvoltage category
– At V
r
= 24 VDC: II
Degree of protection IP65
Degree of protection according to IEC 60529
● Protection against the ingress of dust and full touch protection
● Water projected by a nozzle against the enclosure from any direction shall have no
harmful effect.
Degrees of protection IP66 and IP67
Degree of protection according to IEC 60529
● Protection against the ingress of dust and full touch protection
● IP66: Water from heavy seas or water projected in powerful jets shall not enter the
enclosure in harmful quantities.
● IP67: Protection against water when enclosure is immersed at specified pressures over a
specified time period (water must not enter the enclosure in any harmful amount)
Rated voltage for operation
The ET 200pro distributed I/O system operates at the following rated voltage and
corresponding tolerance:
Rated voltage
Tolerance range
24 VDC 20.4 VDC to 28.8 VDC