Product Description
The SEC401-11 S1 is a dual-channel ESB Bus Coupler Module designed for Yokogawa ProSafe-RS Safety Instrumented Systems (SIS). Acting as the primary communication bridge between safety controllers and safety node units, it enables high-speed, reliable exchange of safety-critical data. Engineered to support SIL3-rated safety loops, the SEC401-11 S1 maintains signal integrity even under extreme hardware or environmental stress.
This S1-revision module is field-proven for long-term stability and can operate across a wide temperature range (-40°C to +85°C), making it ideal for harsh industrial settings such as remote substations, high-temperature process areas, and distributed safety networks.
Technical Specifications
| Parameter | Specification |
|---|---|
| Module Type | ESB Bus Coupler |
| Model & Suffix | SEC401-11 S1 |
| Communication Protocol | ESB Bus |
| Channels | 2 (Dual-channel for redundant communication) |
| Transmission Speed | 1 Mbps |
| Safety Rating | SIL3-compatible |
| Operating Temperature | -40°C to +85°C |
| Dimensions | 125 × 85 × 70 mm (W × H × D) |
| Weight | 0.7 kg |
Application Scenarios
-
Emergency Shutdown (ESD) systems
-
Fire & Gas (F&G) systems
-
Burner Management Systems (BMS)
-
Distributed safety networks in large-scale industrial plants where fast, reliable node communication is essential
Frequently Asked Questions
Q1: Is the SEC401-11 S1 hot-swappable?
A: Yes. In a dual-redundant ProSafe-RS configuration, one module can typically be replaced while the system remains online, provided the redundant partner is operational, ensuring continuous safety coverage.
Q2: Why is the 1 Mbps transmission speed important?
A: The 1 Mbps speed balances rapid response times for safety trips with high EMI immunity, ensuring reliable performance in electrically noisy industrial environments.
| 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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