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TR-Electronic GmbH 2013, All Rights Reserved
02/21/2018
TR - ECE - BA - GB - 0101 - 05
Page 19 of 29
4.5 Explosion protection characteristics
4.5.1 Ex-labeling, gas
II 3G Ex nAc IIC T6 X
II
3G
Ex
nAc
II
C
T6
X
special conditions
Temperature (IEC/CENELEC)
Subgroup (IEC/CENELEC)
Group (IEC/CENELEC)
Ignition protection type (IEC/CENELEC)
Labeling (IEC/CENELEC)
Device category (ATEX)
Device group (ATEX)
Ex-labeling (ATEX)
Device group .........................................................
II
: potentially gas-explosive areas
Device category ....................................................
3G
: Zone 2
adequate safety with normal operation
Ignition protection type .......................................
nAc
: non-sparking equipment
Ex-Atmosphere cannot be ignited in case of defined
malfunction conditions
Group .....................................................................
II
: potentially gas-explosive areas
Subgroup ..............................................................
C
: typical gas: Hydrogen, acetylene
Temperature ..........................................................
T6
: max. enclosure surface-temperature
85 °C
Special conditions ................................................
X
: see chapter 2.12 on page 15