3. Explosion Protection Instrumentation in Zone 2/Division 2
3-3
TI 33Q01J30-01E
CSA NI Approved Products and Their Configuration Example
The figure below is an example of the configuration of CSA NI approved products which can be
installed in hazardous areas. See the table “The List of CSA NI Compliant Products” in Appendix
for details.
< Hazardous area Class I, Division 2>
<Non-hazardous area>
Optical ESB Bus Node Unit
ANB11S/ANB11D/A2BE2D
ESB Bus Node Unit
ANB10S/ANB10D/A2BE2D
AEA4D etc.
F
OUNDATION
Fieldbus
Optical ESB Bus
Cabinet
Power supply
module
Optical ESB Bus
Repeater Master
Module
Optical ESB Bus
Repeater Slave
Module
Signal cable
Terminal board
Field wiring
terminal for
CSA NI (*1)
I/O module,
terminal block
F030101.ai
*1:
Use a barrier for a F
OUNDATION
fieldbus as a field wiring terminal for CSA NI. (Ex. barrier KLD2-PR-Ex1.IEC1)
Figure Example of the configuration of CSA NI approved products
Power Supply Wiring
The power cable of a node unit for FIO and an optic repeater must be wired from the non-
hazardous area by using Division 2 wiring dedicated in potentially explosive atmospheres such
as a threaded metal conduit. In addition, it is necessary to be wired not to apply stress at the end
of the cable.
When AED5D and A1BD5D are combined with ADV151, ADV161, ADV551 and ADV561, install
an explosion-proof wiring defined in the relevant country for the wiring outside of the external
power supply cable cabinet.
Wiring should be installed to conform to all wiring shall comply with Canadian Electrical Code
Part I and Local Electrical Codes.
The power cable of N-IO field enclosure must be wired in accordance with the instructions
provided in the related GS (General Specifications), TI (Installation Guidance) and IM (User’s
Manuals).
Jan. 22, 2021-00
