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CE means CE mark permitted by the European Comitte for the Electromechanical Standarization
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Ex inside the Hexagon means “Protection against the Explosions”
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II
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II means Group II equipment = Not for use in Mines
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3
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3 means ATEX Category (Old zone II)
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G
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G means tested for gases, Dusts and Vapours
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EEx
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Eex means equipment tested under the latest European Harmonised Standard for use in Explosive atmospheres
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nL
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nL is a protection concept symbol, (in that case Non-sparking)
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IIC
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Gas Grouping (Acetylene & Hydrogen)
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T4
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T(1,2,3,4,5,6) is the equipment classification by its surface maximum temperature: T1=450ºC T2=300ºC T3=200ºC T4=135ºC T5=100ºC T6=85ºC
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Tamb
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Ambient temperature range in service (Standard between -20 & +40ºC not needed to show)
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II
3
G
EEx
nL
IIC
T4
Tamb
