WAGO 750 Series - Unit Categories

Use in Hazardous Environments • 221
Classification Meeting CENELEC and IEC
WAGO-I/O-SYSTEM 750
Linux Fieldbus Coupler
11.3.3 Unit Categories
Moreover, the areas of use (zones) and the conditions of use (explosion
groups) are subdivided into categories for the electrical operating means:
Tab. 11-2: Unit categories
Unit
category
Explosion
group
Area of use
M1 I Fire-damp protection
M2 I Fire-damp protection
1G II Zone 0 Explosive environment by gas, fumes or mist
2G II Zone 1 Explosive environment by gas, fumes or mist
3G II Zone 2 Explosive environment by gas, fumes or mist
1D II Zone 20 Explosive environment by dust
2D II Zone 21 Explosive environment by dust
3D II Zone 22 Explosive environment by dust