ATEX Code Definition

Ex II 2 G Ex h IIC T4 Gb X

Ex II 2 D Ex h IIIC T135°C Db X

 -20 °C ≤ Ta ≤ 60 °C
 

Equipment group

II

Surface Industry

Equipment category

Group II

2

High level of protection

• zone 1 (gas)

• zone 2 (gas)

• zone 21 (dust)

• zone 22 (dust)

Atmosphere

G

Atmosphere containing Gas, Vapors or Mist

D

Atmosphere containing Dust

Safety design

h

Mechanical product

Gas group

IIC

Hydrogene/ Acetylene

IIB

Ethylene

Dust group

IIIC

Surface combustible dust

Max surface temperature in Gas atmosphere

T1 = 450°C

T2 = 300°C

T3 = 200°C

T4 = 135°C

T5 = 100°C

T6 = 85°C

Max surface temperature in Dust atmosphere

Example temperatures:

T85°C

T110°C

T120°C

T125°C

T240°C

Special restriction, for example ambient temperature range.

X