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Product Overview
The Yokogawa SNB10D-213/CU2T Safety Node Unit is a rack-mounted safety interface designed for integration into industrial safety instrumented systems. It enables reliable signal transmission from field devices to the safety control system while maintaining high availability and redundancy. The unit supports dual-redundant power supply and ensures communication integrity through its connector unit with ESB bus termination.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | SNB10D-213/CU2T |
| Dimensions | 482.6 × 221.5 × 205 mm |
| Weight | 5.9 kg |
| Power Supply | 100–120 V AC / 220–240 V AC / 24 V DC |
| Power Consumption | 200 VA (100–120 V AC), 230 VA (220–240 V AC), 5.5 A (24 V DC) |
| Mounting | Rack mountable with four M5 screws, insulation bushes included |
| Signal Interface | Analog and contact signals via ESB bus |
| Redundancy | Dual-redundant power supply |
| Safety Integrity Level (SIL) | SIL 3 |
| Compliance | Industrial safety and performance standards |
Applications
The SNB10D-213/CU2T is suitable for industries requiring stringent safety measures:
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Oil & Gas
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Chemical Processing
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Power Generation
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Water Treatment
It ensures reliable communication between field devices and control systems while supporting safety-critical operations.
Advantages
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High reliability with dual-redundant power supply
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SIL 3 certified for critical safety applications
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Rack-mountable design allows easy integration
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Supports both analog and discrete signal transmission
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ESB bus termination maintains signal integrity
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Compact size with optimized power consumption
FAQ
1. What is the function of the SNB10D-213/CU2T?
It transmits field device signals to the safety control unit and supplies power to connected I/O modules.
2. What types of signals does it support?
It supports both analog and discrete (contact) signals via the ESB bus.
3. What is the power supply requirement?
It can operate on 100–120 V AC, 220–240 V AC, or 24 V DC.
4. What redundancy features are included?
The unit has a dual-redundant power supply to ensure uninterrupted operation.
5. What safety level does it achieve?
It is certified to SIL 3 standards.
6. How is the unit mounted?
Rack mountable using four M5 screws with insulation bushes provided.
7. What are the dimensions and weight?
Dimensions: 482.6 × 221.5 × 205 mm; Weight: 5.9 kg.
8. Can it be integrated into existing safety systems?
Yes, it is compatible with Yokogawa ProSafe-RS and Centum VP systems.
9. Does it require ESB bus termination?
Yes, the CU2T connector includes a terminator to ensure signal integrity.
10. Which industries are most suited for this unit?
Industries with high safety requirements such as oil & gas, chemical processing, power generation, and water treatment.
Related and Recommended Models
| Model | Description | Dimensions (mm) | Weight (kg) |
|---|---|---|---|
| SNB10D-215/CU2T | Updated version of SNB10D with similar functionality | 482.6 × 221.5 × 205 | 5.9 |
| SNB10D-213/CU2N | Connector unit without terminator | 482.6 × 221.5 × 205 | 5.9 |
| SNB10D-220/CU2T | Extended I/O capacity model | 482.6 × 221.5 × 205 | 6.1 |
| SNB10D-225/CU2T | High-power variant for larger systems | 482.6 × 221.5 × 205 | 6.2 |
| SNB10D-213/DU2T | Dual ESB interface version | 482.6 × 221.5 × 205 | 6.0 |
| SNB10D-210/CU2T | Basic model for small-scale integration | 482.6 × 221.5 × 205 | 5.8 |
Popular Yokogawa Models
| Model | Description | Dimensions (mm) | Weight (kg) |
|---|---|---|---|
| ProSafe-RS CNK | Safety control unit | 482 × 132 × 220 | 7.2 |
| SNB10D-213 | Standard safety node unit | 482.6 × 221.5 × 205 | 5.9 |
| SNB10D-215 | Extended safety node unit | 482.6 × 221.5 × 205 | 5.9 |
| DCS CENTUM VP | Distributed control system | 482 × 200 × 250 | 12 |
| FCS CENTUM VP | Field control station | 482 × 220 × 210 | 10.5 |
| ProSafe-RS HUB | Safety network hub | 482 × 132 × 180 | 6.5 |
