Triconex 3636T Digital Relay Output Module

The Triconex 3636T Digital Relay Output Module is a critical component of the Tricon™ safety and control platform developed by Schneider Electric. Specifically designed for applications that demand high-integrity relay outputs, this module offers 16 independent relay channels for interfacing with external devices such as solenoids, contactors, alarms, and actuators.

Built to meet stringent safety standards including TUV-certified SIL 3 compliance, the 3636T delivers unmatched performance in safety-critical systems across industries like oil & gas, power generation, chemical processing, and pharmaceuticals. The module is ideal for fail-safe control applications, providing isolation, diagnostics, and redundancy that align with the fault-tolerant Triconex architecture.

It is fully hot-swappable and supports online replacement without disturbing system operations—crucial for minimizing downtime in continuous process environments.

Product Specifications

Applications

The Triconex 3636T module is widely used in critical industrial safety and control applications, including:

• Emergency Shutdown Systems (ESD)

  Control of final elements (valves, actuators) during emergency conditions.

• Fire & Gas Systems (F&G)

  Output control for fire suppression equipment and gas detection alarms.

• Turbomachinery Protection

  Relay output to drive shutdown devices during overspeed or vibration events.

• High-Integrity Pressure Protection Systems (HIPPS)

  Used to drive relays that close valves in case of overpressure detection.

• Critical Alarm Systems

  Control of audible/visual alarms in regulated process environments.

• Process Safety Interlocks

  Safe state activation through dry contact relay outputs.

The 3636T’s robust performance and modularity make it ideal for any process that cannot afford failure in output operations.

Product Advantages

• True TMR Architecture:

  Triple Modular Redundancy ensures fault tolerance at both hardware and logic levels.

• SIL 3 Certification:

  Fully certified according to IEC 61508 for use in critical safety systems.

• Per-Channel Isolation:

  Enhances fault containment and protects control circuitry from external disturbances.

• Field-Replacable and Hot-Swappable:

  Allows online maintenance without interrupting system operation.

• Status and Health Monitoring:

  Built-in diagnostics for each channel reduce downtime and assist predictive maintenance.

• High Reliability:

  Proven performance in mission-critical environments with extremely low failure rates.

• Wide Compatibility:

  Fully integrates into existing Tricon systems and works seamlessly with all standard I/O racks.

• Low Power Usage:

  Efficient power profile reduces thermal stress in dense configurations.

Frequently Asked Questions (FAQ)

1. How many relay outputs are available on the 3636T module?

   The module provides 16 individually isolated relay output channels.

2. Is the 3636T suitable for SIL 3 applications?

   Yes, it is fully SIL 3 certified and TUV-approved for high-integrity systems.

3. Can the 3636T be hot-swapped during operation?

   Yes, it supports hot-swapping and can be replaced without shutting down the system.

4. What is the contact rating of the relays?

   Each relay supports up to 2 A at 30 VDC or 0.5 A at 125 VAC resistive load.

5. Does the module support redundancy?

   Yes, it is designed for use in TMR configurations with full redundancy.

6. Which systems is the 3636T compatible with?

   It works with Tricon v10 and later control platforms.

7. What is the main difference between 3636T and 3636R?

   The 3636T is a newer revision with improved diagnostics and enhanced relay design.

8. Is there per-channel fault monitoring?

   Yes, each channel provides diagnostic feedback to the main processor.

9. What type of relays are used—mechanical or solid-state?

   The module uses electromechanical Form A (normally open) dry contact relays.

10. What type of loads can be driven by this module?

    It is ideal for driving solenoids, alarm horns, control relays, and interlock circuits.