You are here:
- Home
- Product
- I/O Modules
- Digital Output Modules
- ICS Triplex T8451C Trusted TMR 24V DC Digital Output Module
SKU: T8451C
ICS Triplex T8451C Trusted TMR 24V DC Digital Output Module
The ICS Triplex T8451C is a 40-channel Trusted TMR Digital Output Module designed for 24V DC field devices. It features a Triple Modular Redundant architecture to eliminate single points of failure. This fault-tolerant module provides integrated line monitoring and real-time diagnostics for safety-critical industrial applications.
Product Overview
The ICS Triplex T8451C functions as a high-integrity interface between the Trusted controller and field devices. This Triple Modular Redundant (TMR) Digital Output Module drives 24V DC loads, such as solenoids, relays, and actuators, in environments that prioritize safety and continuous uptime. By utilizing three isolated processing paths, the T8451C ensures that a single point of failure cannot trigger an unintentional output change or a system shutdown.
Core Functional Capabilities
- Executes Triple Modular Redundancy: The module processes all output signals through three independent electronic paths. It uses hardware-based voting logic to validate the final output state, ensuring maximum signal integrity.
- Isolates Internal Faults: Integrated voting circuits detect and isolate discrepancies between processing channels. This fault-tolerant behavior allows the module to maintain control even if a component fails within one of the three paths.
- Monitors Field Circuitry: The T8451C performs continuous line monitoring to identify field-side issues, including open circuits and short circuits. This feature provides operators with immediate visibility into the health of connected cabling and devices.
- Supports Hot-Standby Configurations: The system architecture allows for the inclusion of a secondary T8451C module in a standby slot. Consequently, the controller can perform an automatic changeover during maintenance without interrupting the process.
- Delivers Real-Time Diagnostics: Comprehensive internal self-testing routines report the health of the module to the main processor. This proactive reporting simplifies troubleshooting and reduces the Mean Time to Repair (MTTR).
Technical Specifications
- Brand: ICS Triplex (Rockwell Automation)
- Model Designation: T8451C
- Series: Trusted Regent Control System
- Module Type: 24V DC Digital Output (TMR)
- Output Channels: 40 Channels (Grouped for high-density applications)
- Operating Voltage: 24 VDC Nominal
- Physical Weight: 0.55 kg
- Dimensions: 25.7 cm x 17.3 cm x 7.8 cm
- HS Code: 8537101190
- Manufacturing Location: USA
Industrial Implementation
Engineers integrate the T8451C into safety-critical architectures where the cost of failure is extreme. Because the module resists environmental stressors such as moisture and temperature fluctuations, it thrives in offshore oil platforms, chemical refineries, and power generation plants. It serves as a cornerstone for Emergency Shutdown (ESD) systems and Fire and Gas (F&G) logic, providing the reliable actuation necessary to protect personnel and assets.
Tags: Digital Output Module
You may also like
The Emerson KJ3208X1-BK1 (12P4699X052) is an 8-channel, 24V DC Digital Output module for DeltaV M-series systems. It features 1.0 A per channel switching, G3 environmental protection, and a rugged -40°C to +70°C operating range.
Yokogawa ADV561-P11Â S1 Digital Output Module
The Yokogawa ADV561-P11 S1 is a 64-channel digital output module for the CENTUM VP system. It offers high-density 24V DC control with optical isolation for process actuators. This module provides rapid response times and supports hot-swapping for continuous operation.
Yokogawa ADV551-P00Â S2 Digital Output Module
The Yokogawa ADV551-P00 S2 is a 32-channel digital output module for CENTUM VP systems. It features 24V DC isolated transistor outputs and supports PWM and pulse modes. This Japan-made module offers high-speed switching and hot-swap capabilities for reliable process control.
Yokogawa NFDV561-P00 S2 Digital Output Module
The Yokogawa NFDV561-P00 S2 is a high-density 64-channel Digital Output Module for CENTUM VP systems. Featuring a 24VDC current sink design and 100mA capacity per channel, this module offers reliable, high-precision control for valves, relays, and indicators in demanding industrial settings.
ICS Triplex Trusted TMR T8451 Digital Output Module
The ICS Triplex T8451 is a 40-channel, 24VDC TMR Digital Output module designed for the Trusted Safety System. It features SIL 3 integrity, integrated line fault diagnostics, and full voltage/current monitoring for every channel. This fault-tolerant module ensures maximum reliability for critical Emergency Shutdown (ESD) and Fire & Gas applications.
ICS Triplex T8461C Digital Output Module Regent Control System
The ICS Triplex T8461C is a high-integrity 24 Vdc Digital Output Module featuring TMR architecture for maximum fault tolerance. As a result of its rugged USA-made design, it provides fail-safe control for safety-critical actuators in the oil, gas, and power sectors.
HIMA F3322 16-Channel Safety-Related Digital Output Module
The HIMA F3322 is a high-density 16-channel safety-related digital output module designed for H41q and H51q systems. It offers integrated short-circuit protection and comprehensive diagnostics for reliable control of actuators in SIL-rated environments.
ICS Triplex Trusted T8461CX 24V DC Digital Output Module
The ICS Triplex T8461CX is a 40-channel, 24V DC supervised digital output module for Trusted TMR systems. It provides fault-tolerant actuator control and advanced line monitoring for SIL 3 safety applications.
Yokogawa SDV531-S33 Digital Output Module ProSafe-RS Safety Instrumented System
The Yokogawa SDV531-S33 is an 8-channel digital output module designed for the ProSafe-RS Safety Instrumented System. It provides SIL3-certified performance with advanced self-diagnostics for emergency shutdown and fire and gas applications. This robust, Japan-made safety module ensures mission-critical reliability and rapid response in hazardous industrial environments.
ICS Triplex T9852 AADvance Digital Output Module
The ICS Triplex T9852 is an 8-channel digital output module designed for the AADvance safety system. Featuring SIL 3-rated TMR architecture and integrated line monitoring, this 24 VDC module delivers high-integrity control for emergency shutdown valves and critical industrial actuators.
HIMA F8641 H41q/H51q System Safety-Related Digital Output Module
The HIMA F8641 is a safety-related Digital Output Module designed for H41q and H51q systems. This German-engineered module ensures fail-safe operation and high-integrity switching for critical actuators and valves in SIL-rated safety loops.
Yokogawa ADV551-P53 S2 Digital Output Module
The Yokogawa ADV551-P53 S2 is a 32-channel, 24 VDC digital output module designed for CENTUM VP systems. Featuring a high-density design, dual-redundancy support, and integrated diagnostics, this module provides reliable and fault-tolerant switching for solenoid valves and relays in demanding DCS environments.


























