Use Of S7-1500R/H In Zone 2 Hazardous Area - Siemens SIMATIC S7-1500 System Manual

Protection class according to IEC 61131-2, IEC 61010-2-201
The S7-1500R/H redundant system meets protection class I requirements and 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 S7-1500R/H
redundant system:
• Protection against contact with standard test fingers
• Protection against foreign objects with diameters in excess of 12.5 mm
• No protection against water
Rated voltage for operation
The S7-1500R/H redundant system works with the rated voltages and corresponding
tolerances listed in the table below.
Table 16- 9
rated voltage
24 V DC
1)
16.6

Use of S7-1500R/H in Zone 2 hazardous area

Reference
You can find more information in the product information Use of modules in a Zone 2
Hazardous Area (http://support.automation.siemens.com/WW/view/en/19692172).
S7-1500R/H redundant system
System Manual, 01/2024, A5E41814787-AF
Rated voltage for operation
Static value: Generation as protective extra-low voltage with safe electrical isolation in accordance
with IEC 61131-2 or IEC 61010-2-201.
16.6 Use of S7-1500R/H in Zone 2 hazardous area
Tolerance range
19.2 V DC to 28.8 V DC
Technical specifications
1)
493