Siemens 3RS2

Table of contents
1 Introduction........................................................................................................................................... 7
1.1 Required basic knowledge.................................................................................................... 7
1.2 Scope of the manual ............................................................................................................ 7
1.3 Operating Instructions ......................................................................................................... 7
1.4 Siemens Industry Online Support ......................................................................................... 7
1.5 Siemens Industry Online Support app................................................................................... 9
1.6 Support Request .................................................................................................................. 9
1.7 Security information ............................................................................................................ 9
1.8 Recycling and disposal ....................................................................................................... 10
2 Safety instructions, standards ............................................................................................................. 11
2.1 Product-speci󹪝c safety instructions..................................................................................... 11
2.1.1 Hazardous Voltage ............................................................................................................. 11
2.1.2 Intended use...................................................................................................................... 11
2.1.3 Radio interference.............................................................................................................. 12
2.2 Standards, approvals and certi󹪝cates .................................................................................. 12
3 ATEX..................................................................................................................................................... 15
3.1 Safety and commissioning instructions for hazardous areas ................................................ 15
3.2 Use in areas subject to an explosion hazard due to gases or dust......................................... 16
4 Analog devices..................................................................................................................................... 17
4.1 Applications....................................................................................................................... 17
4.2 General functions .............................................................................................................. 17
4.3 Performance characteristics ............................................................................................... 18
4.4 Connection systems........................................................................................................... 18
4.5 Sensor types ...................................................................................................................... 19
4.6 Measuring ranges .............................................................................................................. 19
4.7 Temperature monitoring .................................................................................................... 20
4.8 Operator control ................................................................................................................ 21
4.8.1 Operator controls and display elements, settings, measuring ranges................................... 21
4.9 Time diagrams................................................................................................................... 22
5 Digital devices ..................................................................................................................................... 25
5.1 Applications....................................................................................................................... 25
5.2 General functions .............................................................................................................. 26
3RS2 temperature monitoring relay
Equipment Manual, 02/2022, A5E42462552002A/RS-AB/002 3