SNB10D-425/CU2N YOKOGAWA Robust safety node unit

The Yokogawa SNB10D‑425/CU2N is a rack‑mountable safety node unit designed for use in industrial safety instrumented systems (SIS) and process automation

applications that demand high reliability and safety integrity. It serves as a core safety node that interfaces safety I/O modules and field devices to the

safety control unit via the ESB (Extended Safety Bus), providing critical safety communication, monitoring, and control in

mission‑critical systems such as emergency shutdown (ESD) and high‑integrity pressure protection systems (HIPPS).

Frequently Asked Questions

Q1. What is a safety node unit?
A safety node unit is a safety‑rated I/O node that interfaces safety field devices (e.g., emergency shutdown switches, safety sensors, final elements)

with a safety controller. It routes safety signals over a dedicated ESB (Extended Safety Bus), ensuring rapid,

fault‑tolerant communication in Safety Instrumented Systems (SIS).

Q2. What does “SNB10D‑425/CU2N” stand for?

SNB10D: Yokogawa’s base model series for safety node units.

425: Configuration code indicating the integrated safety I/O capacity (e.g., mix of analog/digital channels — detailed configuration varies).

/CU2N: Option code for the ESB bus connector unit (Part number: S9342FA).

Q3. What safety level is it certified for?
It is designed to meet SIL 3, a high safety integrity level commonly used in critical

industrial processes that require strict risk reduction and reliability.

Moore Automation are still working and able to shipping worldwide.

Our company has many products in stock,which are immediately available.The warranty is 1 years which apply to all the new products.If you purchase one more parts from us,we can make a discount to you.

If you have any questions, please feel free to contact us. We can supply various automation parts. If you want to buy parts, please send the part model to my email and I will reply to you immediately after receiving it.

Hope anyone enquire from us.

We have tens of thousands of spare parts and spare parts warehouse . Products and services to serve for installing of users control system.

Distributed control systems, programmable controllers, panel controller and drive!

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* Reduced maintenance costs!

We have a large inventory of control system components. We also made a lot of new hardware and discontinued spare parts to help

supporting your existing control systems.

We have experienced staff, extensive testing , all the spare parts which we sold are with warranty period of one year, and they have

undergone rigorous testing and certification!