ATEX directive: Classification of operating resources

ATEX directive for hazard classification

Components and solutions with ATEX certification for all steps in the automation process

Legal directives such as NEC/CEC in the USA and Canada, and Europe’s 2014/34/EU (ATEX) are in place alongside other regulations to reduce the risk of explosions in high risk operating areas and increase industrial machine safety. For an ATEX certificate approval the areas will be divided by explosion hazard - risk zones.

Place of use and zoning, as well as ignition type and protection levels are govern the requirements placed on components, units and devices. Rexroth gives you access to a wide variety of hydraulic and electric drives with ATEX certification.

 
Explosive area Gas 1) Frequency 1) Equipment group 2) Equipment category 2) Area of application Level of protection
Zone 0 Continuous, frequent, long-term II 1G Gases, vapors, fog/mist Ga
Very high level of protection
Zone 1 Occasional II 2G Gases, vapors, fog/mist Gb
High level of protection
Zone 2 Seldom, short time frame, at malfunction II 3G Gases, vapors, fog/mist Gc
Normal level of protection
 
 
 
Explosive area Dust 1) Frequency 1) Equipment group 2) Equipment category 2) Area of application Level of protection
Zone 20 Continuous, frequent, long-term II 1D Dusts Da
Very high level of protection
Zone 21 Occasional II 2D Dusts Db
High level of protection
Zone 22 Seldom, short time frame, at malfunction II 3D Dusts Dc
Normal level of protection
 
 
Explosive area Mining 1) Frequent 1) Equipment group 2) Equipment category 2) Area of application Level of protection
Mining Continuous I M1 Methane, coal dust Ma
Very high level of protection
Mining Continuous I M2 Methane, coal dust Mb
High level of protection
 
 
 
Category acc. to 2014/34/EU Type of product 3) Procedure 4) Document filing
IM1
II1G
II1D
Electrical or non-electrical EC type testing by a notified body Rexroth and at notified body with confirmation
IM2
II2G
II2D
Electrical EC type testing by a notified body Rexroth and at notified body with confirmation
IM2
II2G
II2D
Non-electrical Conformity assessment by manufacturer Rexroth and at notified body
II3G
II3D
Electrical or non-electrical Conformity assessment by manufacturer Rexroth
 
 

Detailed information about the tables: