Description 
  3.3 Installation 
1LA5/6/7/9, 1LG4/6, 1MA6/7, 1MB..1/2/3/4/5 - SH 63 ... 355 
Operating Instructions, 06/2018, A5E44455710A 
29 
 
Risk of explosion during operation due to too high surface temperature 
This can result in death, serious injury, or material damage. 
• Prevent the maximum surface temperature from being exceeded by maintaining the 
specified operating conditions. 
• Monitor the coil temperature. Use the temperature sensor that is built into the stator 
winding for this as specified on the rating plate or extra rating plate. 
 
 
Zone 1, type of protection increased safety Ex "e" or "eb" 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
- or EAC marking 
 
Identification number or name of nominated testing agency
 
 
Code for prevention of explosions
 
Device group: II not for mine
s susceptible to firedamp, but other hazardous zones 
 
Device category: 2 for occasional danger
 
⑥ 
 
 
Explosion protection: International
 
 
Explosion protection type "e" or "eb" increased safety
 
 
Explosion group: IIC for acetylene
 IIB für ethylene 
 
Temperature class: T3 for maximum surface temperature of 200° C
 
⑪ 
Device protection level: Gb for a high level of protection in hazardous zones with e
x-