Product Description
The SEC402-21 is a high-speed ESB (Extended Safety Bus) coupler module for the Yokogawa ProSafe-RS. It connects the main safety control unit to distributed safety node units, enabling deterministic, fault-tolerant communication. Designed for redundant configurations, it ensures continuous operation of safety-critical loops in ESD and process safety applications. Its rugged design supports reliable performance in demanding industrial environments.
Detailed Technical Specifications
| Parameter | Specification |
|---|---|
| Model | SEC402-21 |
| System Integration | ProSafe-RS safety controllers |
| Interface Protocol | High-speed ESB (Extended Safety Bus) |
| Mounting | Slots 7 and 8 of safety control unit backplane |
| Redundancy | Dual-module support for high-availability safety loops |
| Dimensions | 130 × 129.5 × 32.8 mm |
| Weight | 0.24 kg |
Applications
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Offshore oil & gas platforms
-
Chemical refining plants
-
Critical infrastructure safety monitoring
-
Safety node communication and emergency shutdown loops
-
SIL-compliant safety systems
FAQ
Why must the SEC402-21 be mounted in slots 7 and 8?
These slots provide proper electrical coupling and synchronization with the ProSafe-RS CPU and ESB bus architecture.
Is hot-swapping supported?
Yes, when configured redundantly, the SEC402-21 can be replaced or maintained without interrupting ESB communication, provided the backplane and firmware support online maintenance.
| 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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