GE IS200TRLYH1BGF Termination Relay Card

Overview

The GE IS200TRLYH1BGF is a Termination Relay Card designed for the Mark VI Speedtronic Turbine Control System, part of the well-established GE Mark family of control solutions. Known for its compact design and durable construction, this module plays a vital role in managing relay termination points within turbine automation systems.

This model is a revised version of the original IS200TRLYH1, incorporating three significant product revisions, with only the first two being backwards-compatible.

Technical Specifications

Frequently Asked Questions

Q1: Are all three revisions of the IS200TRLYH1BGF backwards-compatible?
A: No. Only the first two revisions are considered backwards-compatible as they maintain consistent functional styles.

Q2: What does the conformal PCB coating involve?
A: The conformal coating is a chemically applied thin protective layer that shields the PCB surface from wear, moisture, dust, and other environmental factors, enhancing durability in industrial environments.

Functional Description

The IS200TRLYH1BGF is a printed circuit board (PCB) utilized in the Mark VI system to facilitate relay termination. It plays a key role in signal routing and control logic execution within the turbine system. This board is especially useful in systems requiring compact and efficient termination solutions.

This specific revision enhances the original IS200TRLYH1 by offering improved layout and components, although only the first two revisions can be used interchangeably.

Hardware Features

• Large Rectangular PCB Layout

• 2 Long Black Terminal Blocks

• Each block includes 24 terminals

• Terminals numbered sequentially from 1 to 48

• Relays/Contactors

• Aligned vertically

• Enclosed in transparent covers

• 6 Black Transistors (Upper half of board)

• 6 Red MOVs (Metal Oxide Varistors)

• Each paired with a transistor

• Additional MOV located at the lower-left corner

• 6 Solid Blue Capacitors

• Arranged in a line to the right of the MOVs

• Multiple Integrated Circuits (ICs) across the board

Product Identification Breakdown

The part number IS200TRLYH1BGF carries detailed product metadata:

• IS200 – Indicates Mark VI normal assembly and domestic GE manufacture

• TRLY – Stands for “Termination Relay”, a functional acronym

• H1 – Denotes conformal coating and Group 1 classification

• BGF – Represents the three major product revisions

Application and Lifecycle Notes

• Part of GE’s legacy Mark VI system, which is no longer in active production

• Used primarily in steam and gas turbine control

• Due to its discontinued status, the part number itself provides key insight into compatibility and hardware configuration

Conclusion

The GE IS200TRLYH1BGF termination relay card is a compact, robust module designed to meet the needs of high-performance turbine control systems. While the module is now part of GE’s legacy product line, it remains a vital component in many operational Mark VI setups. Buyers should take note of revision compatibility and consider alternative modules for specialized applications such as sensitive ground protection.