![WAGO 750-527 Скачать руководство пользователя страница 44](http://html1.mh-extra.com/html/wago/750-527/750-527_manual_3222645044.webp)
44 Use in Hazardous Environments
WAGO-I/O-SYSTEM 750
750-527 4DO 30V AC/DC 2.0A SSR
Manual
Version 1.0.0
Figure 20: Text Detail – Marking Example for Approved Ex i I/O Module According to NEC 505
Table 23: Description of Marking Example for Approved Ex i I/O Module According to NEC 505
Marking
Description
CI I,
Explosion protection group
Zn 2
Area of application
AEx
Explosion protection mark
nA
Type of protection
[ia Ga]
Type of protection and equipment protection
level (EPL): Associated apparatus with intrinsic
safety circuits for use in Zone 20
IIC
Group
T4
Temperature class
Gc
Equipment protection level (EPL)
Figure 21: Text Detail – Marking Example for Approved Ex i I/O Module According to NEC 506
Table 24: Description of Marking Example for Approved Ex i I/O Modules According to NEC 506
Marking
Description
CI I,
Explosion protection group
Zn 2
Area of application
AEx
Explosion protection mark
nA
Type of protection
[ia IIIC]
Type of protection and equipment protection
level (EPL): Associated apparatus with intrinsic
safety circuits for use in Zone 20
IIC
Group
T4
Temperature class
Gc
Equipment protection level (EPL)