The Triconex 3603T is a high-reliability, Triple Modular Redundant (TMR) digital output module designed for the Tricon controller system. This module is engineered to control 16 independent 120V DC field loads, such as solenoids, relays, and motor starters in safety-critical environments. By utilizing a “quad” output voting circuit, the 3603T provides maximum fault tolerance, ensuring that the process remains safe and operational even if a single component fails within the module’s output circuitry.
Product Specifications
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Model Number: 3603T
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Output Type: TMR Digital Output (Isolated)
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Nominal Voltage: 120V DC
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Number of Channels: 16 Channels
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Dimensions: 420 mm x 210 mm x 40 mm
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Weight: 2.20 kg
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Country of Origin: USA (Schneider Electric / Invensys)
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Maximum Load Current: 0.8 Amps per channel
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Minimum Load Current: 10 mA
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On-State Voltage Drop: < 3V DC
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Off-State Leakage: < 2.5 mA
Application Fields
This module is a primary choice for high-voltage DC control in Safety Instrumented Systems (SIS). It is extensively used in oil and gas production for Emergency Shutdown (ESD) valves, in chemical plants for managing hazardous process interlocks, and in power plants for controlling high-voltage DC relay logic. Its 120V DC rating makes it ideal for legacy system upgrades or specific heavy-duty industrial applications where 24V DC is insufficient to drive field devices over long cable distances.
Product Instructions
The 3603T module is designed for hot-swappable installation into any high-density slot of a Tricon chassis. It must be paired with an appropriate External Termination Assembly (ETA) and a 120V DC power source. Due to the high voltage involved, all wiring must comply with local safety standards, and the common return for the field loads must be securely connected to the termination panel. The module performs continuous self-diagnostics; if a fault is detected in one of the three internal legs, the remaining two legs maintain control without interrupting the output state. When replacing a module, wait for the “ACTIVE” LED to turn solid before assuming the new module has fully synchronized with the controller.
FAQ: Common Questions and Answers
Q: Can this module be used to switch AC loads? A: No, the 3603T is strictly designed for 120V DC switching. Attempting to use it with AC voltage will lead to improper operation and potential damage to the output transistors.
Q: Does the 3603T support supervised outputs (Line Monitoring)? A: The 3603T includes sophisticated internal diagnostics to check the health of the output switches, but for full field-to-logic line monitoring (detecting open or short circuits in the field wiring), specific termination panels and software configuration may be required.
Q: What is the benefit of the TMR “Quad” output structure? A: The “quad” structure uses four output switches for every channel. This configuration ensures that if one switch fails “Short” or “Open,” the other switches can still successfully turn the load ON or OFF as commanded by the majority vote.
For detailed technical specifications and procurement of the TRICONEX 3603T, please visit our digital inventory.
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