Technical data

Use in Hazardous Environments • 319
Classification Meeting CENELEC and IEC
WAGO-I/O-SYSTEM 750
BACnet/IP Controller
9.3.3 Unit Categories
A further subdivision for device groups is made into categories according to
their area of use (zones).
Tab. 9-2: Unit categories
Device group Unit category Equipment or Area of use
I M1 Fire-damp protection
I M2 Fire-damp protection
II 1G Zone 0 equipment
(Explosive environment by gas, fumes or mist)
II 2G Zone 1 equipment
(Explosive environment by gas, fumes or mist)
II 3G Zone 2 equipment
(Explosive environment by gas, fumes or mist)
II 1D Zone 20 equipment
(Explosive environment by dust)
II 2D Zone 21 equipment
(Explosive environment by dust)
II 3D Zone 22 equipment
(Explosive environment by dust)