WAGO 750-830 Manual page 319

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
I
I
II
II
II
II
II
II
WAGO-I/O-SYSTEM 750
BACnet/IP Controller
Classification Meeting CENELEC and IEC
Equipment or Area of use
M1 Fire-damp protection
M2 Fire-damp protection
1G Zone 0 equipment
(Explosive environment by gas, fumes or mist)
2G Zone 1 equipment
(Explosive environment by gas, fumes or mist)
3G Zone 2 equipment
(Explosive environment by gas, fumes or mist)
1D Zone 20 equipment
(Explosive environment by dust)
2D Zone 21 equipment
(Explosive environment by dust)
3D Zone 22 equipment
(Explosive environment by dust)
Use in Hazardous Environments • 319