Product Overview
The IS230SNRLH2A (Model: IS230SNRLH2A) is a high-integrity Relay Output Node designed for the GE Mark VIe Distributed Control System (DCS). This module serves as a robust interface between low-power control logic and high-energy field devices, providing physical electromechanical isolation to protect sensitive electronics from inductive kickback and electrical noise. The IS230SNRLH2A (Part Number: IS230SNRLH2A) is specifically engineered for critical turbine control applications, where reliable switching of solenoid valves, motor starters, and auxiliary actuators is mandatory for system safety.
Operating as a distributed I/O component, the IS230SNRLH2A utilizes dual-redundant IONet connections—a deterministic Ethernet-based protocol—to ensure continuous communication with the controller even in the event of a single network failure. Its DIN rail-mounted form factor allows for efficient installation in remote I/O enclosures, reducing wiring runs and improving the overall modularity of gas and steam turbine control architectures.
Detailed Technical Specifications
The IS230SNRLH2A combines industrial-grade relay hardware with advanced digital diagnostics.
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Manufacturer: General Electric (GE)
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Model Number: IS230SNRLH2A
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Series: Mark VIe / Mark VIeS Control
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Module Function: Relay Output Node (SNRL)
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Output Type: Electromechanical Relay (Form-C and Form-A variants supported)
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Channel Density: 12 to 16 Relay Output Channels
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Contact Rating: 2.0 A at 24 VDC or 48 VDC (Resistive)
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Network Interface: Dual 100Base-TX Ethernet (IONet) ports
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Network Redundancy: Supports Simplex, Dual, and TMR (Triple Modular Redundant) configurations
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Input Voltage: 28 VDC Nominal (Operating range: 18 VDC to 30 VDC)
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Power Consumption: 10 W to 15 W (depending on relay activation state)
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Isolation: Galvanic isolation between field contacts and internal logic bus
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Diagnostics: Relay health monitoring, voting status, and network link LEDs
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Mounting: Standard 35mm DIN Rail (Vertical or Horizontal)
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Operating Temperature: 0°C to +60°C (32°F to 140°F)
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Dimensions: Compact modular block design
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Weight: 2.0 kg (Shipping weight)
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