ICS Triplex T8403C Trusted TMR Digital Input Module

ICS Triplex T8403C Module 40-Channel Triple Redundant I/O

ICS Triplex T8403C Module 40-Channel Triple Redundant I/O

Availability: 10 left in stock

Product Description Triple Modular Redundancy for Critical Safety Logic The T8403C (Model: T8403C) is a high-integrity 24V DC digital input module designed for...

SKU: T8403C

Manufacturer: ICS Triplex
Product No.: T8403C
Product Type: Digital Input Module
Payment:T/T, Western Union
Weight: 800g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Product Description

Triple Modular Redundancy for Critical Safety Logic

The T8403C (Model: T8403C) is a high-integrity 24V DC digital input module designed for the Rockwell Automation ICS Triplex Trusted system. Engineered for Safety Instrumented Systems (SIS), the T8403C (Catalog Number: T8403C) utilizes a Triple Modular Redundant (TMR) architecture to provide the highest levels of fault tolerance and system availability. Each of the 40 input channels is processed through three independent sub-channels, using a majority voting system to identify and isolate internal hardware faults without interrupting the safety function. This makes the module an industry standard for Emergency Shutdown (ESD) and Fire and Gas (F&G) applications.

Detailed Technical Specifications

The T8403C incorporates advanced Sigma-Delta input circuitry to ensure precise signal detection and comprehensive line monitoring.

Manufacturer: ICS Triplex (Rockwell Automation)
Model Designation: T8403C
Module Type: TMR Digital Input (24V DC)
Input Channels: 40 Channels
System Architecture: Triple Modular Redundant (TMR)
Processor: 32-bit RISC, 200 MHz
On-board Memory: 16 MB RAM, 8 MB Flash
A/D Technology: Sigma-Delta converters for enhanced noise rejection
Line Monitoring: Field-selectable for open-circuit and short-circuit detection
Communication Support: Ethernet, Serial, Modbus (via Trusted Controller)
Redundancy Capacity: Supports integration with up to 32 redundant controllers
Input Voltage Range: 18V DC to 32V DC (Nominal 24V DC)
Operating Temperature: -40 °C to +70 °C (-40 °F to +158 °F)
Maintenance Feature: Hot-swappable design for online replacement
Diagnostics: Comprehensive internal self-test and field-loop monitoring

What's clients say about us

Excellent Emergency Support!

Our production line was down due to a faulty Bently Nevada monitor. We found it in stock here and they shipped it via DHL immediately. Back in operation within 48 hours—truly a lifesaver for our plant.

Mark Thompson

Maintenance Manager, USA

Reliable Source for New Spares

Finding brand new, original modules is critical for our safety. This team delivers factory-fresh components with full certification. Their commitment to only selling new products makes them our most trusted partner.

Robert Hoffmann

Engineering Lead, Germany

Top-tier Service and Quality

We have sourced Honeywell and Schneider parts here for two years. Every shipment arrives well-packaged with original factory seals intact. Clear communication and the best lead times in the industry.