Siemens 1LA8 Operating & Installation Instructions Manual page 25

IEC/EN 60079-14
IEC/EN 60079-15
Ex marking for type of protection Ex nA IIC T3 Gc or Ex ec IIC T3 Gc
①
②
③
④
⑤
⑥
⑦
⑧
⑨
⑩
⑪
⑫
⑬
Ex marking for type of protection Ex nA IIB T3 Gc or Ex ec IIB T3 Gc
SIMOTICS TN Series N-compact 1LA8
Operating Instructions 08/2017
II
① ② ③
AA87
① ⑪ ②
CE- or EAC marking
Code for prevention of explosions
Equipment group: II not for mining, but other hazardous zones
Device category: 3 for infrequent, short-term danger
Atmosphere: G for gas
Explosion protection: International
"nA" or "ec" type of protection
Explosion group: IIC for acetylene
Temperature Class: T3 for maximum surface temperature 200 °C
Device protection level: Gc for an extended level of protection in hazardous zones with
explosive gas mixtures
Identification number or name of nominated testing agency
Zone 2
"X" special conditions
II
① ② ③
AA87
① ⑪ ②
GOST IEC 60079-14
GOST R IEC 60079-15
3 G Ex
④ ⑤ ⑥
2 Ex nA
⑫ ⑥ ⑦
3 G Ex
④ ⑤ ⑥
2 Ex nA
⑫ ⑥ ⑦
nA IIC T3
ec
⑦ ⑧ ⑨
IIC T3 Gc
⑧ ⑨ ⑩
nA IIB T3
ec
⑦ ⑧ ⑨
IIB T3 Gc
⑧ ⑨ ⑩
Description
Gc
⑩
X
⑬
Gc
⑩
X
⑬
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