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- Yokogawa
- SNB10D-445/CU2T
- Safety Node Unit
- Japan
- 482.6 x 221.5 x 205 mm
- 5.9 kg
- Xiamen, China
- New & In Stock
- T/T, PayPal, Western Union
- 1 Year
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We have a 10-year logistics and express cooperation agreement, so our products can be shipped to any place in the world.
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Our products are imported in bulk from the place of origin. Because of the cooperative relationship, our products are all original and 100% new.
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We provide 7*24 hours service to our customers. We will be there whenever you need us.
Price advantage
All our products are priced very favorably because we have our own warehouse and supply.
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Product Overview
The Yokogawa SNB10D-445/CU2T is a Safety Node Unit used in the ProSafe-RS Safety Instrumented System (SIS). It acts as a distributed interface module for field devices, enabling reliable ESB bus communication, signal acquisition, and power distribution in safety-critical industrial environments.
The CU2T configuration indicates a connector unit with ESB termination support, ensuring stable signal integrity at network endpoints.
Technical Specifications
| Parameter | Details |
|---|---|
| Manufacturer | Yokogawa |
| Model | SNB10D-445/CU2T |
| Product Type | Safety Node Unit |
| System Platform | ProSafe-RS SIS |
| Function | I/O node, ESB communication, power distribution |
| Communication Protocol | ESB Bus |
| Mounting Type | 19-inch rack mounted |
| Dimensions | 482.6 × 221.5 × 205 mm |
| Weight | 5.9 kg |
| Redundancy | Supported |
| Application | Industrial safety systems |
Function and Working Principle
The SNB10D-445/CU2T operates as a distributed safety interface node in a SIS architecture.
Main functions:
- Collects analog and digital field signals
- Transmits data through ESB safety communication bus
- Distributes power to connected I/O modules
- Supports redundant and fault-tolerant system design
- Provides termination stability for ESB network endpoints
System Data Flow
Field Devices → Safety Node Unit → ESB Bus → Safety Control Unit
Role in Industrial Systems
This unit is used as a local expansion node in ProSafe-RS systems, connecting:
- Field transmitters (pressure, temperature, flow, level)
- Emergency shutdown switches
- Digital and analog I/O modules
- Central safety controllers
It reduces wiring complexity while improving system scalability and reliability.
Applications
- Oil & gas industry
- Petrochemical plants
- Refinery systems
- Offshore platforms
- Power generation stations
- Chemical processing plants
- Safety Instrumented Systems (SIS)
- Emergency Shutdown Systems (ESD)
- Fire & Gas detection systems
Installation Notes
- Installed in standard 19-inch industrial racks
- Requires ESB bus wiring according to system topology
- Proper grounding and shielding required
- Termination depends on system design (/CU2T used at endpoints or designated nodes)
- Commissioning required for full system validation
Compatible Components
- Yokogawa ProSafe-RS controllers
- ESB bus coupler modules
- Safety I/O modules
- Terminal boards
- Power supply modules
Alternative Models
- SNB10D-445/CU2N
- SNB10D-425/CU2T
- SNB10D-415/CU2T
- SNB10D-243/C2UT
- SNB10D-225/CU2N
Key Advantages
- High-reliability SIS architecture
- Redundant system support
- Stable ESB communication
- Termination-ready connector design
- Modular and scalable expansion capability
- Continuous industrial operation suitability
FAQ
Q: Is this a controller or CPU?
No, it is a distributed safety I/O node.
Q: What does CU2T mean?
It indicates ESB termination support for stable bus endpoints.
Q: Where is it used?
In SIS, ESD, and Fire & Gas safety systems.
Conclusion
The Yokogawa SNB10D-445/CU2T is a safety node unit designed for distributed control architectures, providing reliable communication, signal handling, and system expansion within ProSafe-RS safety systems.