Product Description
The SDV541-S53/STB4D-00 is a 16-channel safety digital output module developed for the Yokogawa ProSafe-RS Safety Instrumented System (SIS). It delivers high-integrity 24 V DC outputs for driving safety-critical final elements such as solenoid valves, actuators, and alarm indicators.
Certified for SIL3 applications, the module integrates advanced internal diagnostics and a non-intrusive pulse-test mechanism that continuously verifies the switching capability of each output channel without causing unintended actuation of connected field devices.
To ensure reliable operation in harsh industrial environments, the SDV541-S53/STB4D-00 features robust galvanic isolation, along with protection against back-EMF, short circuits, and wiring faults. Its high-density 16-channel design optimizes I/O rack utilization while fully complying with the stringent fault-detection requirements of Emergency Shutdown (ESD) and Fire & Gas (F&G) systems.
Technical Specifications
| Parameter | Specification |
|---|---|
| Output Channels | 16 channels, isolated |
| Rated Output Voltage | 24 V DC |
| Load Current | Max. 0.6 A per channel |
| Total Module Load | Max. 8 A aggregate |
| Safety Rating | SIL3 (IEC 61508 certified) |
| Fault Detection | Short circuit, open loop, output switching failure |
| Internal Power Consumption | 450 mA @ 5 V DC / 150 mA @ 24 V DC |
| Response Time | ≤ 40 ms (On ↔ Off) |
| Dimensions (W × H × D) | 32 × 127 × 127 mm |
| Net Weight | 0.4 kg |
Industrial Applications
The SDV541-S53/STB4D-00 is widely deployed in high-risk process industries, including:
-
Petrochemical and chemical plants
-
LNG terminals
-
Offshore oil & gas platforms
It serves as a reliable output interface for initiating safety actions, ensuring that final control elements respond precisely and predictably during trip or hazard mitigation events.
Pulse Test Operation
The module performs periodic pulse testing by momentarily interrupting the output for a sub-millisecond duration. This brief interruption allows the safety logic to confirm output switch integrity while remaining transparent to connected solenoids or actuators, whose mechanical inertia prevents any unintended movement.
| 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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