Figure 48: Text Detail - Marking Example For Approved Ex I; Figure 49: Text Detail - Marking Example For Approved Ex I; Table 55: Description Of Marking Example For Approved - WAGO 753-668/000-004 Manual
4fai 0/4-20 ma diff profisafe, fail-safe 4-channel analog input, 0/4-20 ma, differential inputs, profisafe for wago-i/o-system 750 series
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WAGO-I/O-SYSTEM 750
753-668/000-004 4FAI 0/4-20 mA Diff PROFIsafe
Figure 48: Text Detail – Marking Example for Approved Ex i I/O Module According to NEC 505
Table 53: Description of Marking Example for Approved Ex i I/O Module According to NEC 505
Marking
CI I,
Zn 2
AEx
nA
[ia Ga]
IIC
T4
Gc
Figure 49: Text Detail – Marking Example for Approved Ex i I/O Module According to NEC 506
Table 54: Description of Marking Example for Approved Ex i I/O Modules According to NEC 506
Marking
CI I,
Zn 2
AEx
nA
[ia IIIC]
IIC
T4
Gc
Use in Hazardous Environments 141
Description
Explosion protection group
Area of application
Explosion protection mark
Type of protection
Type of protection and equipment protection
level (EPL): Associated apparatus with intrinsic
safety circuits for use in Zone 20
Group
Temperature class
Equipment protection level (EPL)
Description
Explosion protection group
Area of application
Explosion protection mark
Type of protection
Type of protection and equipment protection
level (EPL): Associated apparatus with intrinsic
safety circuits for use in Zone 20
Group
Temperature class
Equipment protection level (EPL)
Version 1.0.0, valid from HW/SW Version 01/01
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