Description
TRICONEX 3623T Supervised Digital Output Module Product Introduction
The TRICONEX 3623T is a high-integrity, TMR-based supervised digital output module designed for Triconex Safety Instrumented Systems (SIS). As a 16-channel fault-tolerant output device dedicated to high-voltage safety loop control, it adopts triple modular redundancy architecture and comprehensive circuit supervision technology. The module delivers precise, reliable switching output and real-time circuit health monitoring for critical industrial safety applications. Fully compliant with IEC 61508 SIL 3 functional safety standards, it ensures fail-safe operation and uninterrupted safety control in harsh, high-risk process environments.

TRICONEX 3623T
Product Applications
The TRICONEX 3623T is widely utilized in safety-critical industrial scenarios requiring supervised high-reliability digital output and loop health diagnosis, covering oil & gas, petrochemical, chemical processing, power generation, and energy industries. It serves as a core execution module for SIS, ESD, and F&G safety systems, with typical application scenarios as follows:
- Emergency Shutdown (ESD) Systems: Drives high-voltage safety solenoid valves, emergency trip relays, and shutdown actuators, executing reliable emergency isolation and equipment shutdown commands during process abnormalities to prevent hazardous incidents.
- Fire & Gas (F&G) Protection Systems: Controls fire suppression equipment, exhaust systems, hazard alarm beacons, and gas isolation valves, supporting rapid linkage responses after hazard detection.
- High-Integrity Safety Interlock Loops: Applies to high-standard safety interlock control loops that require real-time circuit supervision and fault self-checking, ensuring loop integrity and avoiding hidden failure risks.
- High-Voltage Industrial Actuator Control: Adapts to 120VDC high-voltage field equipment drive scenarios, solving the output limitations of conventional 24VDC digital modules and expanding industrial safety control boundaries.
- Critical Power Equipment Protection: Provides stable trip control for power generation equipment, turbine auxiliary systems, and high-pressure process units, guaranteeing safe and orderly equipment shutdown under abnormal conditions.
Technical Specifications & Parameters
The TRICONEX 3623T features industrial-grade high-voltage supervised output design, with standardized electrical, environmental and mechanical parameters. It delivers excellent operational stability and safety performance under extreme industrial conditions, fully meeting SIL 3 safety control requirements. Detailed specifications are listed below:
2.1 Electrical & Output Parameters
- Module Type: TMR triple redundant supervised digital output module
- Channel Configuration: 16 independent supervised output channels
- Nominal Output Voltage: 120VDC
- Operating Voltage Range: 90VDC to 150VDC
- Maximum Tolerable Voltage: 160VDC
- Single Channel Rated Current: Maximum 2A per channel
- Output Voltage Drop: Less than 1.5V under rated load
- Backplane Power Consumption: 6W typical (5VDC backplane), 1.2A nominal current
- Supervision Function: Full-time circuit monitoring for open circuit, short circuit and load abnormality
- Isolation Design: Complete galvanic isolation between field side and system side to eliminate electromagnetic interference and signal crosstalk
- Signal Response: Fast switching response to meet real-time safety interlock action requirements
2.2 Environmental Parameters
- Operating Temperature: -40°C to +70°C
- Storage Temperature: -40°C to +85°C
- Relative Humidity: 5% to 95% (non-condensing)
- Environmental Adaptability: Compliant with IEC industrial vibration, shock and EMC electromagnetic interference resistance standards
- Protection Grade: Industrial dustproof and moisture-proof design for long-term continuous field operation
2.3 Mechanical & Certification Parameters
- Dimensions: 115mm (H) × 230mm (W) × 50mm (D)
- Weight: Approximately 1.5kg
- Installation Method: Standard Triconex TMR chassis slot mounting
- System Compatibility: Fully compatible with all Triconex TMR series controllers, chassis and supporting software
- Safety Certification: IEC 61508 SIL 3 certified, UL Class I Div 2, ATEX Zone 2, CE compliant
- Design Service Life: More than 10 years under standard industrial operating conditions

TRICONEX 3623T
Core Product Features
3.1 TMR Triple Modular Redundancy Fault-Tolerant Architecture
The TRICONEX 3623T adopts three fully independent internal output processing channels with a built-in two-out-of-three hardware voting mechanism. All three channels synchronously execute safety output commands and conduct real-time data comparison. Single-channel hardware failure, signal deviation or circuit abnormality will be automatically identified, isolated and masked. The module maintains normal output status based on the consensus of the other two healthy channels, eliminating single-point failure risks and ensuring zero downtime of safety loops.
3.2 Full-Time Channel Supervision & Loop Diagnosis
Different from conventional ordinary output modules, the 3623T supports full-cycle supervised output for each channel. It can real-timely detect field loop faults including wiring open circuit, short circuit, load damage and abnormal voltage drop. All loop health data and fault codes are uploaded to the upper system synchronously, realizing proactive fault warning and precise location, effectively avoiding latent safety loop failures that cannot be detected by traditional modules.
3.3 High-Voltage High-Power Stable Output Capability
Designed for 120VDC high-voltage industrial scenarios, the module breaks through the 24VDC output limit of conventional Triconex output modules. With 2A large current load capacity and ultra-low voltage drop performance, it can directly drive high-power field actuators without intermediate relay conversion, simplifying on-site circuit design, reducing wiring failure points, and improving the overall stability of safety control loops.
3.4 Strict Fail-Safe Protection Mechanism
Following industrial safety fail-safe design principles, the 3623T automatically switches to a predefined safe de-energized state in case of module failure, power supply abnormality, voting mismatch or communication interruption. It triggers safety protection actions such as equipment shutdown and hazard isolation, effectively preventing system misoperation and ensuring the maximum safety integrity of industrial production processes.
3.5 Excellent Harsh Environment Adaptability
Adopting industrial-grade reinforced hardware design, the module supports ultra-wide temperature operation from -40°C to +70°C, and has outstanding vibration resistance, shock resistance and electromagnetic interference resistance. It can operate stably in extreme industrial environments such as low temperature, high humidity and complex electromagnetic fields, adapting to long-term unattended continuous operation requirements.
3.6 Convenient Maintenance & Strong Compatibility
Fully compatible with the entire Triconex TMR system ecosystem, supporting seamless integration with existing SIS and DCS systems. It allows online module replacement and hot maintenance without system shutdown, greatly reducing equipment maintenance downtime. The standardized modular structure and intelligent diagnosis function simplify on-site debugging, daily inspection and fault troubleshooting.
Similar Series Models
Triconex 3600 series consists of high-performance supervised digital output modules for TMR safety systems. The mainstream similar and supporting models of the TRICONEX 3623T are listed below for system configuration, replacement and expansion reference:
- TRICONEX 3623: Standard version of 3623T, 16-channel supervised digital output module with basic high-voltage output function, suitable for conventional safety loop control scenarios.
- TRICONEX 3624: Enhanced high-current supervised output module, with upgraded load capacity and stronger loop diagnosis function, applicable to high-power actuator control scenarios.
- TRICONEX 3411: Classic 24VDC solid-state digital output module, matched with 3623T to realize mixed high/low voltage safety output control.
- TRICONEX 3301: 32-channel digital input module, cooperating with 3623T to complete signal acquisition and linkage output of safety loops.
- TRICONEX 3704E: High-precision analog input module, providing analog parameter monitoring data for 3623T safety interlock judgment.
- TRICONEX 5101S2: Safety communication module, realizing real-time upload of 3623T output status and fault diagnosis data.

TRICONEX 3623T
Product Summary
The TRICONEX 3623T is a high-end SIL 3-grade 120VDC supervised digital output module in the Triconex TMR safety system product line. With triple modular redundant fault-tolerant architecture, full-channel loop supervision diagnosis, high-voltage high-power stable output and excellent environmental adaptability, it solves the latent failure detection and high-power drive pain points of traditional safety output modules. It is widely applied in high-risk process industry safety control scenarios, providing high-reliability output execution and full-loop health monitoring for ESD, F&G and interlock systems, and is a core key component to ensure the long-term safe and stable operation of industrial safety instrumented systems.
Purchase Contact
For Order Inquiry & Business Cooperation, Please Contact Edith
WhatsApp: +86 18030274832
Mailbox: Edith@massive-plc.com

