3. Explosion Protection Instrumentation in Zone 2/Division 2
3-22
TI 33Q01J30-01E
Installing Optical ESB Bus Node Unit in Class I, Division 2 (Wiring by Optical
cable for Optical ESB Bus)
Optical ESB Bus Node Unit
ANB11D/A2BE2D
AED5D
Cabinet
AEP7D
Conduit wiring
ESB Bus Node Unit
ANB10D/A2BE2D
Optical cable for Optical ESB Bus
AEP9D
Grounding for explosion protection
(based on NEC or laws defined in
each country)
<Non-hazardous Area>
Conduit wiring
FM NI equipment
<Hazardous area Class I, Division 2>
ANT401
ANT502
F030118E.ai
100 V AC Power supply
220 V AC Power supply
or
24 V DC Power supply
Figure Installing Optical ESB Bus Node Unit in Class I, Division 2 (Wiring by Optical cable for Optical
ESB Bus)
• To connect with a field device, electrical parameters of each device should be met.
• To wire the devices that do not indicate electrical parameters, apply an explosion-proof
wiring (including threaded conduit wiring) defined in NEC (National Electrical Code:
ANSI/NFPA-70) or in each country. In addition, wiring the devices that indicate electrical
parameters with the compliant devices can be a general wiring defined in each country.
Dec. 3, 2021-00
