Triconex 3625A Digital Output Module 24VDC TMR

Triconex 3625A Digital Output Module - 24VDC TMR Safety Control

The Triconex 3625A Digital Output Module is an advanced Triple Modular Redundant (TMR) output interface engineered for mission-critical safety instrumented systems. Designed by Schneider Electric for Tricon platforms, this module provides reliable 24VDC supervised and non-supervised digital outputs with fault-tolerant architecture that ensures continuous operation in hazardous industrial environments.

Technical Specifications

• Output Voltage: 24 VDC nominal (18-30 VDC operating range)
• Output Type: Supervised and Non-Supervised TMR channels
• Architecture: Triple Modular Redundant (TMR) for fault tolerance
• Safety Rating: SIL 3 certified per IEC 61508
• Output Current: Up to 2A per channel (dependent on configuration)
• Isolation: Channel-to-channel and channel-to-backplane optical isolation
• Diagnostic Coverage: >99% with continuous self-testing
• Operating Temperature: -40°C to +70°C (-40°F to +158°F)
• Mounting: Standard Triconex chassis slot installation

Application Scenarios

The 3625A module excels in demanding safety applications across multiple industries:

• Emergency Shutdown Systems (ESD): Controls final control elements like shutdown valves, motor starters, and alarm annunciators in oil & gas facilities
• Fire & Gas Detection: Activates suppression systems, ventilation controls, and emergency lighting in petrochemical plants
• Burner Management: Manages fuel valves, ignition systems, and flame safeguard sequences in power generation
• Process Safety: Operates relief valves, diverter gates, and containment systems in chemical manufacturing
• Turbomachinery Protection: Triggers trip mechanisms and auxiliary systems for compressor and turbine safety

Integrated Safety Solutions

When deployed within a Triconex safety architecture, the 3625A works seamlessly with complementary modules to deliver comprehensive protection. Pair with Triconex 3503E Digital Input Module for complete I/O coverage, integrate Triconex 3721N Analog Input Module for process variable monitoring, or expand capacity with Triconex 3624E Digital Output Module for additional output channels.

Key Advantages

• Fault Tolerance: TMR voting logic ensures operation continues even with single-point failures
• Hot-Swappable Design: Replace modules without system shutdown for zero-downtime maintenance
• Comprehensive Diagnostics: Real-time fault detection with detailed status reporting to HMI/SCADA
• Flexible Configuration: Software-selectable supervised or non-supervised modes per channel
• Proven Reliability: Field-tested in thousands of installations worldwide with MTBF >100,000 hours

Frequently Asked Questions

Q: What is the difference between supervised and non-supervised outputs?
A: Supervised outputs continuously monitor field wiring and load integrity, detecting open circuits, short circuits, and load failures. Non-supervised outputs provide simple on/off control without diagnostic feedback. The 3625A supports both modes, configurable per channel.

Q: Can the 3625A be used in SIL 3 applications?
A: Yes, the module is certified for SIL 3 applications when properly configured within a Triconex safety system. It meets IEC 61508 requirements and has been validated through extensive safety assessments.

Q: Is the module compatible with older Tricon systems?
A: The 3625A is backward-compatible with most Tricon chassis and controllers. Verify firmware compatibility with your specific system version. Contact our technical team for compatibility confirmation.

Q: What is the typical lead time for delivery?
A: We maintain stock for immediate shipment. Standard delivery is 3-7 business days globally, with expedited options available for urgent requirements.

Warranty & Support

Every Triconex 3625A module includes a comprehensive 12-month warranty covering manufacturing defects and performance issues. Our technical support team provides configuration assistance, troubleshooting guidance, and application engineering support throughout the product lifecycle. All units undergo rigorous factory testing and quality verification before shipment.

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