Product Description
The TAS21 is a high-performance surge arrestor engineered by Yokogawa to protect sensitive Distributed Control System (DCS) network hardware from transient voltage spikes. Specifically designed for coaxial communication lines such as the V net and ER bus, the TAS21 acts as a critical safety barrier against lightning strikes and industrial electrical surges. By shunting excess voltage to the ground before it reaches the Field Control Station (FCS) or communication modules, this protector prevents catastrophic hardware failure and maintains the operational continuity of mission-critical automation networks.
Technical Specifications
| Specification | Details |
|---|---|
| Model Designation | TAS21 |
| Component Category | Coaxial Lightning Arrester |
| Connector Interface | N-type (Male/Female) standard coaxial ports |
| Impedance Rating | 50 Ohms (optimized for Yokogawa V net signals) |
| Frequency Range | Supports high-speed data transmission up to 2.5 GHz |
| Discharge Capacity | High-current surge diversion (typically up to 10kA or higher per pulse) |
| Insertion Loss | Low-attenuation design (typically < 0.2 dB) to maintain signal strength |
| Mounting Requirement | Dedicated grounding terminal for connection to the system earth bus |
| Housing Material | Corrosion-resistant metallic enclosure for industrial durability |
| Compatible Networks | 10BASE-5 (Thick Coax), V net, and ER bus architectures |
System Integration and Protection
In large-scale industrial plants, coaxial cables often span significant distances between buildings or cabinets, making them susceptible to atmospheric electricity. The TAS21 is typically installed at the point where the coaxial trunk enters the cabinet or at the junction of an outdoor cable run. Its bidirectional protection ensures that both the upstream and downstream components are shielded. For maximum effectiveness, the TAS21 must be connected to a low-impedance high-quality ground (Earth) system as specified in Yokogawa’s installation manuals.
FAQ
Q: Does the TAS21 impact network speed or data throughput?
A: No, the TAS21 is designed with high-frequency transparency. Its low insertion loss ensures that V net and ER bus communications remain well within the required timing and signal-to-noise ratio (SNR) tolerances.
Q: Is the TAS21 a maintenance-free device?
A: While it is a passive component, the TAS21 should be inspected after significant lightning events or during annual plant turnarounds. If the gas discharge tube inside the unit is spent, the protector should be replaced to ensure continued safety.
| 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. |
Recently Viewed
Express Shipping
Extensive Inventory
Quality Assurance
