Siemens SIMOTICS XP 1MB1 series - Zone 2, Type of Protection Increased Safety Ex Ec or Non Sparking Na

Description
3.3 Installation
1LA5/6/7/9, 1LG4/6, 1MA6/7, 1MB..1/2/3/4/5 - SH 63 ... 355
30 Operating Instructions, 06/2018, A5E44455710A
3.3.9.2
Zone 2, type of protection increased safety Ex "ec" or Non sparking "nA"
II
3
G
Ex
ec
IIC
T3
Gc
①
②
③
④
⑤
⑥
⑦
⑧
⑨
⑩
2
Ex
nA
IIC
T3
Gc
X
①
⑪
②
⑫
⑥
⑦
⑧
⑨
⑩
⑬
①
CE
- or EAC marking
②
Code for prevention of explosions
③
Device group: II not for mines susceptible to firedamp, but other hazardous zones
④
Devi
ce category: 3 for infrequent, short-term danger
⑤
Atmosphere: G for gas
⑥
Explosion protection: International
⑦
Type of protection: "ec" increased safety or "nA" for Non Sparking
⑧
Explosion group: IIC for acetylene IIB für ethylene
⑨
Temperature Cla
ss: T3 for maximum surface temperature of 200° C
⑩
Device protection level: Gc for an extended level of protection in hazardous zones with
explosive gas mixtures
⑪
Identification number or name of nominated testing agency
⑫
Zone 2
⑬
"X" special conditi
ons