YOKOGAWA ProSafe-RS Technical Information

2. Explosion Protection Instrumentation in Zone 2/Division 2
2-14
TI 32S01J30-01E
<Hazardous area Zone 2>
<Non-hazardous area>
F030207.ai
Cabinet
L2SW
SCU
SNU
SSB401
L2SW
Cabinet
SNT401
N-IO
I/O Module
FIO
I/O Module
Fiber-optic cable
S2BN1D
S2BN1D
S2NN30D
S2EN501
SEC401
Ex “ec”/Type “n” deviceEx “ec”/Type “n” device
Transient
Protection
Transient
Protection
*1
*1
*1
24 V DC
Power
Supply
(*2)
Transient
Protection
(*2)
Transient
Protection
(*2)
(*2)
*1
N-IO
I/O Module
24 V DC
Power
Supply
24 V DC
Power
Supply
*1 *1
L2SW: Layer 2 switch
SCU: Safety Control Unit
SNU: Safety Node Unit
*1: Explosion-proof wiring that is dened in EN/IEC 60079-14 and the rules/standards of each country or region.
*2: Transient protection shall be provided that is set at a level not exceeding 119 V DC at the supply terminal of S2BN1D, S2BN4D,
and S2BN5D to the equipment.
Figure Example of Ex “ec” Configuration
Dec. 3, 2021-00

YOKOGAWA ProSafe-RS Specifications

General

Brand	YOKOGAWA
Model	ProSafe-RS
Category	Industrial Equipment
Language	English