Product Description
The SNB10D-225/CU2T is a high-integrity safety node unit specifically engineered for the Yokogawa ProSafe-RS Safety Instrumented System (SIS). This rack-mounted chassis serves as a centralized base for safety I/O modules, providing the foundational infrastructure for mission-critical emergency shutdown (ESD) and fire and gas (F&G) applications. Designed with a focus on maximum system availability, the unit integrates a dual-redundant power supply architecture to ensure continuous protection even in the event of a power component failure.
Equipped with the CU2T connector unit, this configuration includes a built-in terminator for the ESB (Extended Serial Backplane) bus, facilitating stable, high-speed communication across the safety network. The SNB10D-225 is built to withstand extreme industrial conditions, featuring a wide operating temperature range and G3-level conformal coating for protection against corrosive atmospheres. It is an essential component for safety loops requiring SIL3 certification in oil, gas, and chemical processing facilities.
Technical Specifications
| Specification | Details |
|---|---|
| Model Designation | SNB10D-225 |
| Power Architecture | Dual-redundant 220 V to 240 V AC power supply modules |
| Suffix Configuration | -2 (Redundant power + R3 expansion license); -225 (220-240V AC); /CU2T (Connector unit with terminator) |
| Bus Interface | ESB Bus with integrated termination |
| Environmental Resistance | ISA Standard G3 conformal coating for corrosive gas protection |
| Operating Temperature | -20°C to +70°C (Extended range for harsh environments) |
| Installation Style | 19-inch rack-mountable (7U height typical) |
| I/O Slot Capacity | Supports high-density ProSafe-RS safety I/O modules |
| Certifications | Compatible with SIL3 requirements; optional ATEX/IECEx for hazardous zones |
| Weight | 5.9 kg |
Application Scenarios
-
Emergency Shutdown (ESD): Providing the hardware backbone for rapid process isolation in refineries.
-
Fire and Gas Systems (F&G): Hosting localized logic for flame detection and suppression activation.
-
Hazardous Area Deployment: Utilizing the optional explosion protection for remote sites in offshore platforms.
Technical Support FAQ
What is the significance of the /CU2T suffix?
The /CU2T indicates that the unit is equipped with a connector interface that includes an internal bus terminator. This is required at the end of an ESB bus chain to prevent signal reflection.
Can this unit be used in a non-redundant power mode?
While the SNB10D-225 comes with two power slots, using both modules is the engineering standard to maintain the safety integrity level (SIL) required for most ProSafe-RS installations.
| 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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