Product Description
The Yokogawa EC401-51 is a high-performance ESB (Extended Serial Backplane) bus coupler module that functions as the primary communication bridge between a Field Control Unit (FCU) and remote I/O node units. It enables the extension of the controller backplane over ESB bus cabling, allowing efficient expansion of I/O capacity in CENTUM VP and ProSafe-RS systems.
The EC401-51 is the standard (non-explosion-proof) type, optimized for general industrial environments where high reliability and stable signal transmission are required. With ISA G3–compliant conformal coating, the module provides enhanced resistance against corrosive gases, ensuring long-term operational stability in harsh control room environments.
Technical Specifications
| Item | Specification |
|---|---|
| Ordering Code | EC401-51 |
| Module Function | ESB bus coupler / backplane extension |
| Type (-5) | Standard type (non-explosion protection) |
| Environmental Option (-1) | ISA G3 conformal coating |
| Interface | ESB bus connector (YCB301 / YCB302 cables) |
| Compatible FCUs | AFV10, AFV30, AFV40 |
| Mounting Method | Direct plug-in to FCU or Node Unit slot |
| Power Consumption | 0.5 A @ 5 V DC |
Operational Context
The EC401-51 is a critical component in large-scale distributed control architectures, commonly installed in:
-
Chemical and petrochemical plants
-
Power generation facilities
-
Pharmaceutical production systems
Its G3-rated conformal coating makes it particularly suitable for installations near marine environments or heavy industrial zones where sulfur- or chlorine-based gases may be present.
FAQ
Q: What does the “G3” designation mean for the EC401-51?
The “-1” suffix indicates compliance with ISA G3 environmental standards, providing enhanced protection against humidity and corrosive gases compared to G1 or G2 options.
Q: Can the EC401-51 be replaced during operation?
Yes. When installed in a redundant system configuration, the EC401-51 supports hot replacement, allowing maintenance without interrupting process control.
| 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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