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        • GE IS200TTURH1B Mark VI Turbine Terminal Board

          Product Overview

          The GE IS200TTURH1B is a Turbine Terminal Board designed for the GE Mark VI Speedtronic turbine control system. It interfaces with turbine speed sensors and generator synchronization signals and supports generator breaker permissive and protection functions. Although sometimes described as a turbine I/O board, its specific function is a terminal/interface board.

          

          Available

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          Key Technical Specifications

          Specification	Details
          Brand	General Electric (GE)
          Model	IS200TTURH1B
          Product Type	Turbine Terminal Board
          Series	Mark VI Speedtronic
          Functional Acronym	TTUR
          Primary Function	Turbine speed input and synchronization interface
          Speed Sensor Inputs	Supports pulse-rate signals from passive magnetic pickups
          Pulse-Rate Range	2 Hz to 20 kHz
          Input Sensitivity	Approximately 27 mV peak
          Breaker Coil Output	Nominal 125 VDC
          Redundancy	Supports Simplex and TMR configurations, depending on system setup
          PCB Construction	Conformal-coated circuit board

          Specifications are based on available product references; confirm the exact revision and system configuration before installation.

          

          Industrial Automation Procurement

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          Features & Advantages

          • Interfaces with turbine speed pickup sensors.

          • Supports generator and bus voltage synchronization signals.

          • Provides relay logic for generator breaker permissive functions.

          • Designed for GE Mark VI turbine control applications.

          • Suitable for maintenance and replacement of compatible legacy equipment.

          Typical Applications

          • Gas turbine control systems

          • Steam turbine control systems

          • Generator synchronization and breaker control

          • Industrial power generation facilities

          • GE Speedtronic Mark VI system maintenance

          Important Notes

          • Verify the complete model number and revision before ordering.

          • The IS200TTURH1B is a Mark VI terminal board; do not assume it is interchangeable with the TTURH1C or other revisions used in different system architectures.

          • Confirm wiring, system compatibility, and breaker-coil requirements before installation.

          • Installation and commissioning should be performed by qualified turbine-control personnel.

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