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Triconex 4355X | Triple-Modular Redundant (TMR) Safety Controller
Mission-Critical Safety & Control for High-Risk Industrial Environments
Product Overview
The Triconex 4355X is a leading triple-modular redundant (TMR) safety controller developed by Schneider Electric (formerly Triconex), designed to deliver uncompromising safety and reliability for critical industrial processes. As part of the Triconex TMR product family—globally trusted in high-risk industries—this controller leverages three identical, parallel-processing channels to eliminate single points of failure, ensuring continuous operation even in the event of component faults.
Engineered to meet the most stringent safety standards (IEC 61508 SIL 3, IEC 61511), the 4355X integrates safety logic execution, process control, and fault tolerance in a single platform. It supports a wide range of I/O modules, industry-standard communication protocols, and advanced diagnostics, making it ideal for applications in oil & gas, petrochemical, power generation, and chemical processing—where safety, availability, and compliance are non-negotiable. Its rugged design, hot-swappable components, and seamless integration with existing control systems further solidify its position as a cornerstone of mission-critical safety infrastructure.
Technical Specifications
Redundancy Architecture
Triple-Modular Redundant (TMR) with Voting Logic
Safety Integrity Level (SIL)
SIL 3 (IEC 61508), SIL 3 (IEC 61511)
Processor Configuration
3x 32-bit RISC Processors (Synchronized Tri-Channel)
Memory Capacity
8 GB Flash Storage; 2 GB DDR4 RAM (Per Channel)
I/O Compatibility
Digital Input/Output, Analog Input/Output, Specialty I/O (HART, Foundation Fieldbus)
Communication Protocols
Modbus TCP/RTU, DNP3, IEC 61850, OPC UA, Ethernet/IP
Power Supply
24 VDC Redundant Input (18-32 VDC); Hot-Swappable Power Modules
Operating Temperature
0°C to +60°C (+32°F to +140°F)
Humidity Range
5% to 95% RH (Non-Condensing)
Mounting Type
19" Rack-Mounted (4U Form Factor)
Certifications
IEC 61508, IEC 61511, UL 1998, CSA C22.2 No. 142, ATEX, IECEx
Fault Tolerance
Continuous Operation with 1 Channel Fault; Alarm on 2 Channel Faults
Programming Software
Triconex TriStation 1131 (IEC 61131-3 Compliance)
Key Features & Benefits
TMR Redundancy Architecture
Three synchronized processing channels with majority voting eliminate single points of failure, ensuring >99.999% availability for critical processes.
SIL 3 Compliance
Meets the highest safety integrity level requirements (IEC 61508 SIL 3), ensuring compliance with global industry safety standards for high-risk applications.
Hot-Swappable Components
Power modules, I/O modules, and communication cards can be replaced without shutting down the controller, minimizing maintenance downtime.
Advanced Diagnostics & Monitoring
Real-time fault detection, channel synchronization monitoring, and predictive maintenance alerts enable proactive issue resolution and maximize system uptime.
Seamless System Integration
Supports industry-standard communication protocols (OPC UA, IEC 61850) and integrates with DCS, PLC, and SCADA systems for unified control and monitoring.
Flexible I/O Expansion
Compatible with a wide range of digital, analog, and specialty I/O modules (including HART and Foundation Fieldbus), adapting to diverse process requirements.
Typical Application Areas
The Triconex 4355X redefines safety and reliability for mission-critical industrial processes, leveraging TMR technology to protect personnel, equipment, and the environment. Trusted by leading organizations worldwide, it delivers the performance, compliance, and availability required to operate safely in the most demanding high-risk environments.
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YMGK Purchase Information
Browse the YMGK website to address issues that customers are more concerned about, including purchasing details. YMGK offers one-stop global industrial product procurement.
Contact Information
- Sales Manager: KI MI
- WeChat: 18059884790
- WHATSAPP: +86 18059884790 (Click to add)
- Email: plc66@qq.com
Core Advantages
- 121 shared inventories worldwide, with direct procurement from overseas warehouses.
- Provide favorable prices and professional after-sales warranty services.
- All products are brand new and original; spare parts come with a one-year warranty and have been tested and certified.
- For orders of more than one product, contact us to get an exclusive discount.
- If other suppliers offer lower prices for the same products, we are willing to provide further discounts based on your budget.
Customer Distribution
Our customers are from: United States, Germany, Japan, South Korea, United Kingdom, France, Italy, Canada, Brazil, India, Australia, Russia, Spain, Netherlands, Switzerland, Sweden, Belgium, Austria, and Turkey.
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