WAGO-I/O-SYSTEM 750 Use in Hazardous Environments 65750-652 Serial Interface RS-232 / RS-485ManualVersion 1.4.0Table 46: Description of Marking Example for Approved Ex i I/O Modules According to ATEX andIECExGasesII Equipment group: All except mining3(1)G Category 3 (Zone 2) equipment containing a safetydevice for a category 1 (Zone 0) equipment3(2)G Category 3 (Zone 2) equipment containing a safetydevice for a category 2 (Zone 1) equipmentEx Explosion protection marknA Gc Type of protection and equipment protection level(EPL): Non-sparking equipment[ia Ga] Type of protection and equipment protection level(EPL): associated apparatus with intrinsic safetycircuits for use in Zone 0[ia Gb] Type of protection and equipment protection level(EPL): associated apparatus with intrinsic safetycircuits for use in Zone 1IIC Explosion group of gas and vapoursT4 Temperature class: Max. surface temperature 135°C
