21
[Ex ia Ga] Enclosure label
Coding
IECEx & ATEX
II 2 G Ex db IIC T6-3*Gb -
##°C ≤ Ta ≤
+##°C
II 2 D Ex tb IIIC T135°C Db IP66/67
Illuminator
II 2 G Ex db op is IIC T4/3 Gb -
##°C ≤ Ta ≤+##°C
II 2 D Ex tb op is IIIC T135°C Db IP66/67
Fibre Optic
II 2 G Ex db op pr IIC T6…3*Gb -
##°C ≤ Ta ≤+##°C
II 2 D Ex tb op pr IIIC T135°C Db IP66/67
Wireless
II 2 G Ex db ????[Ex ia Ga] IIC T6…T5 Gb -
##°C ≤ Ta ≤ +##°C
II 2 D Ex tb ????[Ex ia Ga] IIIC T135°C Db IP66/67
Note: T class, Gas Group and ambient temperature, is dependent on the assembly configuration
and maximum internal power dissipation.
(???? = Optional op pr/op is coding)
*=T class, Gas Group
## = Ambient Temperature range
Marked Ambient range can be any of the
-40
°
C to +40
°
C, -60
°
C to +40
°
C, -40°C to +50°C
following:
-40°C to +55°C, -40
°
C to +70
°
C, -60
°
C to +70
°
C
Wireless Ex ia
T6: -
40°C ≤
Tamb
≤ +40°C
T5: -
40°C ≤
Tamb
≤
+50°C or
T5: -
40°C ≤
Tamb
≤
+55°C
