Product Overview

• Part No: LE109A-1
• Brand: ALSTOM

• Category: Eurocard Control ModuleLE109A-1 is a standard Eurocard rack-mounted control board manufactured by ALSTOM, designed for steam and gas turbine automation systems. The module processes field analog and binary signals, executes control and interlock logic, and realizes internal rack data communication with other functional boards. It serves as a key signal processing unit within turbine control cabinets, widely used as spare part for overhaul and upgrade of power plant control equipment.

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Core Features

• Multi-channel signal conditioning and logic processing for turbine control applications
• Standard Eurocard form factor with front pull-out handle for convenient rack replacement
• Built-in signal filtering and isolation circuits, strong anti-interference capability
• Onboard status indicators for operation monitoring and fault troubleshooting
• Industrial PCB design, optional conformal coating for humid cabinet environment

• Passed thermal cycling, vibration and EMC reliability testing for continuous operation

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Technical Specifications

• Supply Voltage: 24VDC
• Operating Temperature: -20°C ~ +60°C
• Storage Temperature: -40°C ~ +85°C
• Installation: Standard subrack slot mounting inside control cabinet

• Protection Class: IP20

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Compatibility & Application

• Compatible with ALSTOM legacy turbine control subrack systems
• Widely deployed in thermal power and combined-cycle power plant turbine control cabinet maintenance
• Applied for process signal processing, auxiliary equipment sequence control and protection interlock logic