Use Of The Et 200Sp In Zone 2 Potentially Explosive Atmospheres - Siemens SIMATIC ET 200SP System Manual

Technical specifications

14.7 Use of the ET 200SP in zone 2 potentially explosive atmospheres

Degree of protection IP20
Degree of protection IP20 in accordance with IEC 60529 for all modules of the ET 200SP
distributed I/O system, which means:
● Protection against contact with standard probes
● Protection against foreign objects with diameters in excess of 12.5 mm
● No protection against water
Rated voltage for operation
The ET 200SP distributed I/O system works with the rated voltage and corresponding
tolerances listed in the following table.
Note the supply voltage of each module when selecting the rated voltage.
Table 14- 11 Rated voltage for operation
Rated voltage
24 V DC
120 V AC
230 V AC
Static value: Creation as functional extra-low voltage with safe electrical isolation according to
1
IEC 60364-4-41
Dynamic value: Including ripple, e.g. as in the case of three-phase bridge power rectification
2
14.7 Use of the ET 200SP in zone 2 potentially explosive atmospheres
See product information "Use of subassemblies/modules in Zone 2 Hazardous Area"
(http://support.automation.siemens.com/WW/view/en/19692172).
242
Tolerance range
19.2 to 28.8 V DC
1
18.5 to 30.2 V DC
2
93 to 132 V AC
187 to 264 V AC
System Manual, 12/2015, A5E03576849-AF
Distributed I/O system