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RS-485 Passive Surge Protector w/ 600W TVS & 3-Stage Surge Protection
Model No.
CG-RS485-ISO
Protect your RS485 communication lines from voltage surges, transients, and lightning strikes with the RS485-ISO Surge Protector Isolator. Featuring a robust three-stage protection system—including gas discharge tubes, protection resistors, and transient voltage suppressors—this industrial-grade device ensures stable and safe operation in demanding environments.
$29.99
Model No. CG-RS485-ISO
Expected Availability Date: November 13, 2026
Not in stock - Backorder allowed
Product Documents
Description
RS485-ISO Surge Protector Isolator
Ensure the safety and reliability of your RS485 communication lines with the RS485-ISO Surge Protector Isolator. Designed to shield against voltage spikes and transient surges caused by lightning strikes and electrical interference, this device is an essential safeguard for stable and uninterrupted equipment operation.
Key Features and Benefits
- Three-Stage Protection Design: Employs a gas discharge tube, series protection resistors, and a 600W transient voltage suppressor (TVS) for comprehensive surge protection.
- Robust Industrial-Grade Design: With rugged, passive circuitry, it supports a wide operating temperature range of -40°F to 185°F (-40°C to 85°C), making it ideal for demanding environments.
- Effective Surge Diversion: Protects RS485 devices from excess voltage damage, ensuring stable operation.
- Common Mode & Differential Mode Protection: Shields against both common and differential surges affecting RS485 communication.
- High Surge Resistance: With DC spark-over voltage rated at 150V and protection against up to 600W surges.
- Certified Safety Standards: Meets IEC 61000-4-2 ESD standards with ±30kV contact and air discharge, and IEC 61000-4-4 EFT standards with 50A.
- Flexible Mounting Options: Compatible with DIN-Rail mounting using an optional clip for versatile deployment.
Package Contents
- RS485-ISO Surge Protector Isolator
*3-Pin terminal blocks not included. Purchase separately here.
Use Cases
Use Cases:
Industrial Automation
- PLC Communication Protection: Safeguard programmable logic controller communication lines in factory environments.
- Robotics System Stability: Ensure reliable operation of robotic systems with RS485 surge protection.
Data Centers & Networking
- Server Protection: Prevent damage to server RS485 communication lines from voltage transients.
- Building Management Systems: Enhance the reliability of RS485-based building automation networks.
Outdoor Applications
- Lightning Protection: Shield RS485 lines exposed to environmental hazards like lightning strikes.
- Remote Monitoring Systems: Maintain stable communication in remote systems for monitoring and control.
Function Diagram
Function Diagram
Accessories & Replacement Parts
Accessories & Replacement Parts
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Specifications
Product Specifications
| Power | Power Source: Passive Device, No Power Required |
|---|---|
| Compliance | Country of Origin: Taiwan Certifications: TAA, RoHS |
| Physical Characteristics | Color: Silver Item Dimensions (L × W × H): 2.95 × 0.98 × 0.98 in. Item Weight (Oz.): 0.15 lbs. |
| Serial Attributes | Serial Standards: RS485 |
| What's in the Box | Package Contents: Adapter, DIN Rail Bracket, User Manual |
| Software | OS Support / Compatibility: OS independent – No software or drivers required |
| Environmental | Operating Temperature Range: -40 C ~ 85 C Storage Temperature: -40C ~ 85C Humidity: 5% ~ 95% (non-condensing) |
| Product Information | Warranty: One Year |
| Performance & Safety | Max Data Transfer Rate: 10Mbps |
| Additional Details | UPC: 045079164932 TVS Parameters: ESD, IEC 61000-4-2, ±30kV contact, ±30kV air EFT, IEC 61000-4-4, 50A (5/50ns) Lightning, IEC 61000-4-5 2nd edition, 19A (tP=8/20μs) Connector: 3-Pin Terminal Block Weight: 0.1600 lbs Dimensions: 4 × 1.63 × 1.63 in |
Support
Product Documentation & Drivers
Product Documents
Need drawings, CAD files, or other compliance documentation? Click HERE
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