TRICONEX 5211S2 Redundant Digital Input Module



  • Product Code: 5211S2
  • Availability: In Stock

TRICONEX 5211S2

Redundant Digital Input Module

Product Overview

The TRICONEX 5211S2 is a safety-certified redundant digital input module designed for TRICONEX Tricon safety instrumented systems (SIS). As a core component of Schneider Electric’s TRICONEX portfolio, this module provides high-integrity monitoring of digital input signals in mission-critical industrial environments—where system failure could lead to safety risks, production losses, or environmental harm. Its triple-modular redundant (TMR) architecture ensures fault tolerance and compliance with global safety standards like IEC 61508 (SIL 3) and EN 50155.

Key Features

  • Triple-Modular Redundant (TMR) design for maximum fault tolerance
  • 16 isolated digital input channels (24V DC) with channel-to-channel isolation
  • IEC 61508 SIL 3 and TÜV Rheinland certification for safety-critical applications
  • Self-diagnostic capabilities (channel faults, power supply errors) with real-time status reporting
  • Hot-swappable design for maintenance without system shutdown or safety loop interruption
  • Compatibility with TRICONEX Tricon 3000/4000/5000 safety systems

Technical Specifications

Parameter Details
Number of Channels 16 independent digital inputs (24V DC)
Input Voltage Range 18V DC (minimum on) – 30V DC (maximum on); ≤5V DC (off)
Isolation 250V RMS (channel-to-channel); 500V RMS (channels-to-backplane)
Response Time ≤10ms (input state change to backplane communication)
Operating Temperature 0°C to +60°C (+32°F to +140°F); -40°C to +70°C (extended range option)
Safety Certification IEC 61508 SIL 3; EN 50155 (for railway applications); ATEX/IECEx Zone 2

Typical Applications

  • Oil and gas upstream/downstream safety loops (e.g., emergency shutdown, fire suppression)
  • Chemical and petrochemical process safety systems
  • Power generation (nuclear, fossil, renewable) safety instrumented functions
  • Pharmaceutical manufacturing safety-critical monitoring
  • Railway and mass transit safety control systems
  • Marine offshore platform emergency systems

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