Product Description
The SNB10D-225/CU2N is a mission-critical safety node unit engineered for the Yokogawa ProSafe-RS Safety Instrumented System (SIS) platform. This 19-inch rack-mount chassis provides the physical and electrical environment required for high-integrity safety I/O processing, including power distribution, communication backplane connectivity, and module protection for SIL3-certified safety applications.
Designed for high-availability industrial safety operations, the SNB10D-225/CU2N features dual-redundant power supply architecture to prevent single-point electrical failures from affecting safety loop functionality. The chassis is coated with conformal protection compliant with ISA G3 corrosive environment standards, allowing reliable deployment in chemically aggressive atmospheres.
The integrated CU2N connector unit (S9342FA) enables high-speed communication with the Extended System Bus (ESB), ensuring deterministic data synchronization between safety nodes and the central safety control station for real-time protection logic execution.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model Configuration | SNB10D-225/CU2N |
| Redundancy | Dual-redundant power supply architecture |
| Input Voltage | 220 – 240 V AC (50/60 Hz) |
| Bus Interface | CU2N Connector Unit (S9342FA) for ESB linkage |
| Environmental Protection | ISA G3 corrosion resistance |
| Operating Temperature | –20°C to +70°C |
| Safety Integrity Level | Designed for SIL3 applications (with certified I/O modules) |
| I/O Capacity | Supports ProSafe-RS I/O modules |
| Mounting | 19-inch rack mount, 5U height |
| Dimensions | 482.6 mm × 221 mm × 205 mm |
| Weight | 5.9 kg |
Application
The SNB10D-225/CU2N is widely deployed in:
-
Emergency Shutdown Systems (ESD)
-
Fire and Gas Detection Systems (F&G)
-
Burner Management Systems (BMS)
-
Offshore oil and gas production platforms
-
Chemical and petrochemical processing plants
It is particularly suitable for safety-critical automation environments where high reliability, corrosion resistance, and extended temperature operation are required.
Technical FAQ
Does the SNB10D-225/CU2N include I/O modules?
No. The SNB10D-225/CU2N is a base node chassis. Safety I/O modules such as the SAI143 or SDI141 must be purchased separately according to application requirements.
What is the function of the CU2N option?
The CU2N (S9342FA) serves as the ESB communication interface, enabling data exchange between the safety node and the Safety Control Station. Without this connector, network communication cannot be established.
| Quick Quotes | Receive price & availability FAST from our dedicated customer service team. |
|---|---|
| Delivery | Expedited, Freight, And International Shipping Available. |
| Condition | 100% New with Original Package |
| Payment | We accept American Express, Discover, MasterCard, PayPal, and Visa. Our site is secured by RapidSSL. |
| Shipping Port | ShangHai, Xiamen |
| Warranty | 12 Months |
| Q: Is Our Pricing Competitive? |
| A: Yes, we collaborate with over 50 countries worldwide. As a top supplier in China, we offer significant discounts based on market trends. |
| Q: What Is the Warranty Period? |
| A: All our new and original products come with a standard one-year warranty. |
| Q: What Payment Methods Do We Accept? |
| A: We require 100% T/T (Telegraphic Transfer) payment before shipping. For items with a lead time, a 30% deposit is needed upfront, and the remaining 70% is due before shipping. If you have a representative in China, you can arrange an RMB transfer through them. |
| Q: What Shipping Methods Do We Use? |
| A: We primarily use FedEx, DHL, UPS, and BRE for shipping. If you have an account with any of these carriers, you can handle shipping directly. We also offer free shipping to China-based freight forwarders. |
| Q: What Is Our Delivery Time? |
| A: Delivery usually takes 1-3 days after receiving the initial payment. For items with a lead time, shipping will occur according to the specified schedule. |
| Q: How Do We Package the Goods? |
| A: We ensure safe packaging with multiple layers of protection. Products are first placed in their original boxes and sealed with labels. A layer of bubble wrap is then added for collision protection during transit. Finally, the items are packed securely in durable boxes. |
| Q: How Can Customers Contact Us and Request a Quote? |
| A: You can reach out to us via email, WhatsApp, WeChat, Skype, or your preferred communication platform. Contact us with your needs, and we'll provide a prompt, customized quote. |
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