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The GE IS230TNRLH1FAX is a triple-modular redundant (TMR), ATEX-certified Relay Output DIN Rail Module for the GE Mark VIe control system. The “AX” in the part number indicates the module is certified for use in potentially explosive atmospheres. This component is a specialized terminal board used for a specific wiring arrangement in a TMR configuration but does not contain the electronic I/O processing circuitry itself.
Key Features
- Triple-Modular Redundant (TMR): This is a key feature, indicating that the terminal board is designed to interface with three separate I/O packs. This TMR setup provides exceptional fault tolerance and is used in safety-critical applications where redundancy is essential for continuous operation.
- ATEX Certified: The “AX” signifies that the module has been certified for safe operation in hazardous environments where flammable gases, vapors, mists, or dust may be present. This is a critical safety requirement in industries like oil and gas.
- Relay Output: This module is a terminal board with a specific design or arrangement for connecting relay outputs. It provides a clean and organized termination point for signals from the control system to devices like solenoids and motor starters.
- DIN Rail Mounting: The board is designed for standardized installation on a DIN rail, which is a common practice in industrial control cabinets. This simplifies wiring, saves space, and makes the system modular and easy to maintain.
- Mark VIe Integration: As part of the IS230 series, this board is a key component of the Mark VIe control platform, which is widely used for controlling turbines in power generation and other heavy industries.
Applications
The IS230TNRLH1FAX is used in mission-critical industrial settings where high reliability and redundancy are required, particularly in hazardous environments.
- Power Generation: It is a core component in power plants for connecting the wiring from critical relays and contactors to the control system, ensuring that a single-point failure does not compromise the control or safety system.
- Oil and Gas: In refineries and offshore platforms, it provides a stable and redundant connection for the wiring of emergency shutdown valves, fire and gas detectors, and other critical process equipment.
- Safety Instrumented Systems (SIS): The module’s design and ATEX certification make it suitable for use in safety-instrumented systems, where the goal is to bring a process to a safe state when dangerous conditions are met.
