
3SB2 pushbuttons and indicator lights
Configuration Manual, 05/2020, A5E43900767002A/RS-AA/001 3
1 Introduction ............................................................................................................................................. 5
1.1 Purpose of this documentation .................................................................................................5
1.2 Target group .............................................................................................................................5
1.3 Required knowledge .................................................................................................................5
1.4 Siemens Industry Online Support .............................................................................................6
1.5 Siemens Industry Online Support app ......................................................................................8
1.6 Support Request .......................................................................................................................8
2 Safety instructions................................................................................................................................... 9
2.1 Important notes .........................................................................................................................9
2.2 Before commencing work: Isolating the equipment from the supply system and
ensuring that it cannot be reconnected.....................................................................................9
2.3 Recycling and disposal ...........................................................................................................10
2.4 Security information ................................................................................................................10
3 Description............................................................................................................................................ 11
3.1 Application areas ....................................................................................................................11
3.2 Overview of 3SB2 pushbuttons ..............................................................................................12
3.3 Overview of 3SB2 indicator lights ...........................................................................................13
3.4 Overview of 3SB2 key-operated switches, selector switches and EMERGENCY STOP
mushroom pushbuttons ..........................................................................................................14
4 Mounting............................................................................................................................................... 15
4.1 Version with flat connector......................................................................................................15
4.2 Module mounting on a printed circuit board ...........................................................................16
4.3 Module mounting on a printed circuit board ...........................................................................18
4.4 Mounting the contact block on a front plate............................................................................19
4.5 Dismantling the contact block .................................................................................................20
4.6 Mounting a screw lens ............................................................................................................20
4.7 Mounting a button ...................................................................................................................21
4.8 Mounting with EMERGENCY STOP.......................................................................................21
4.9 Variants ...................................................................................................................................22
4.10 Lamp replacement ..................................................................................................................22