GE IS200TTURH1CFD (IS230TNTRH1C) Turbine Terminal Board

Category: GE
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Product Overview: IS200TTURH1CFD / IS230TNTRH1C

The IS200TTURH1CFD / IS230TNTRH1C is a Printed Circuit Board (PCB) developed by General Electric (GE), specifically for use within the Mark VIe Series of turbine control systems. This board is more accurately classified as a Terminal Turbine Board, based on the functional specifications outlined in GE’s official instruction manual.

This particular model is a modified and enhanced version of the base IS200TTURH1 board, featuring:

• C-level major functional revision

• F-level minor functional revision

• D-level single artwork revision

The board is produced by GE Industrial Systems, a specialized division of GE responsible for manufacturing Mark VIe system components.

Functional Role

The IS200TTURH1CFD / IS230TNTRH1C serves as a primary turbine trip terminal board within the Mark VI control system. It plays a critical role in turbine protection and directly interfaces with the VTUR module.

Key compatibility notes:

• Compatible with PTURH1A, TTURH1C, and STUR boards

• Not compatible with DIN rail-mounted DTUR modules or other TTUR variants

Hardware Features & Specifications

This terminal turbine board incorporates several specialized hardware components, each supporting key control and protection functions within the larger turbine control architecture.

Primary functions include:

• Acting as the terminal for 48 input/output connections essential for operation of the VTUR Turbine Control Board Assembly

• Controlling the 52G main breaker relay coil associated with the VTUR system

As with most general-purpose electrical PCBs, full functionality and integration are best understood in relation to the broader control system in which the board operates.