YOKOGAWA ProSafe-RS Technical Information

2. Explosion Protection Instrumentation in Zone 2/Division 2
2-9
TI 32S01J30-01E
 Example of Connection
 Connecting a ProSafe-RS/ProSafe-RS Lite equipment and a Field Device
Installed in Division 2
<Hazardous area Class I, Division 2>
<Non-hazardous area>
Cabinet
SCU
SEC401/L1EC401
SSB401/L1SB401
+T Branch
SNU
Signal cable
~
SEA4D
Conduit wiring
F020104E.ai
Explosion-proof wiring can be
installed for devices that do not
indicate electrical parameters.
General wiring can be installed
for devices that indicate electrical
parameters according to the
results from comparing the
parameters.
AEP7D
SCU: Safety Control Unit
SNU: Safety Node Unit
Figure Example of Connection (Flameproof Wiring)
• Connect to a eld device in accordance with electrical parameter denitions of each device.
• To wire the devices for which electrical parameters are not dened, NEC (National Electrical
Code: NFPA-70) or explosion-proof wiring (such as conduit wiring) dened in each country
should be installed.
Dec. 3, 2021-00

YOKOGAWA ProSafe-RS Specifications

General

Brand	YOKOGAWA
Model	ProSafe-RS
Category	Industrial Equipment
Language	English