
Table of contents
1 Introduction ........................................................................................................................................... 5
2 Safety notes ......................................................................................................................................... 11
3 Security recommendations.................................................................................................................. 13
4 Device description ............................................................................................................................... 19
4.1 Product overview ............................................................................................................... 19
4.2 Product properties and device views................................................................................... 21
4.3 LED display ........................................................................................................................ 25
4.4 C-PLUG .............................................................................................................................. 28
4.4.1 Area of application and function of the C-PLUG................................................................... 28
4.4.2 Removing and inserting the C-PLUG (compact housing)...................................................... 29
5 Installation and disassembly ............................................................................................................... 31
5.1 Safety notices for installation ............................................................................................. 31
5.2 Requirements for the cabinet EN 60529 (ATEX), UKEX, IECEx and CCC-Ex............................ 32
5.3 Installation ........................................................................................................................ 33
5.4 Installation options ............................................................................................................ 34
5.5 General installation............................................................................................................ 34
5.5.1 Installation on a DIN rail..................................................................................................... 34
5.5.2 Installation on a standard rail ............................................................................................. 36
5.5.3 Wall mounting ................................................................................................................... 37
5.6 Installation of modular devices........................................................................................... 37
5.6.1 Installation and removal of media modules ........................................................................ 37
5.6.2 SFP installation in SFP media module ................................................................................. 41
6 Connecting .......................................................................................................................................... 43
6.1 Safety when connecting up................................................................................................ 43
6.2 Risk of explosion when pressing the button (ATEX, IECEx)................................................... 44
6.3 Notes on commissioning.................................................................................................... 46
6.4 Wiring rules ....................................................................................................................... 46
6.5 Connecting functional ground............................................................................................ 47
6.6 Signaling contact ............................................................................................................... 47
6.7 Power supply ..................................................................................................................... 48
7 Maintenance and cleaning .................................................................................................................. 51
8 Technical data...................................................................................................................................... 53
8.1 Construction, installation and environmental conditions..................................................... 53
SCALANCE X-300M
Compact Operating Instructions, 05/2023, A5E02630801-14 3