2. Explosion Protection Instrumentation in Zone 2/Division 2
2-15
TI 32S01J30-01E
Wiring of Ex “ec”/Type “n” Devices
Wiring should be installed to conform to IEC/EN 60079-14 and the rules/standards of each
country or region. After wiring, check it out according to the checklist in IEC/EN60079-17.
Example of a Connection
Connecting a ProSafe-RS/ProSafe-RS Lite equipment and a Field Device
Installed in Zone 2
<Hazardous area Zone 2> <Non-hazardous area>
Cabinet
SCU
SEC401/L1EC401
SSB401/L1SB401
+T Branch
SNU
Signal cable
SEA4D
*1
Use a cabinet meeting the requirements
of EN 61010.
AEP7D
Ex “ec”/Type “n” device
~
*1
Safety
Barrier
*1
SCU: Safety Control Unit
SNU: Safety Node Unit
*1: Explosion-proof wiring that is dened in IEC/EN 60079-14 and the rules/standards of each country or region.
Figure Example of Connection
Dec. 3, 2021-00
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