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3 year warranty

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The IS200EXHSG4A is a static exciter terminal board designed to be used with and in high-speed applications and is essentially the same as the EXTB board. There are empty components on this board that are not necessary for the function of the IS200EXHSG4A but are needed for the previous versions.



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  • Part Number: IS200EXHSG4A
  • Manufacturer: GE Industrial Systems
  • Series: EX2100 Excitation Control

IS200EXHSG4A Technical Specifications

Model Number IS200EXHSG4A
Functional Acronym/Abbreviation EXHS
Product Type Exciter High Speed Board
Manufacturer General Electric Company USA, GE Industrial Systems
Number of Built-In Relays Seven
Number of Conduction Sensors Two, E1/E2
Number of Vertical Male Ribbon Connectors 3
Series EX2100 Excitation Controller
Weight Approximately 2 pounds
Made In USA

Product Description

The IS200EXHSG4A is a Static Exciter High-Speed Relay Driver Terminal Board. This board is the fourth and final of the EXHS models. This board is essentially the same as the exciter terminal board, rather than having the forty-one DC contactors that are on the EXTB there is a solid state relay driver. The IS200EXHSG4A board also has two conduction sensors, which are labeled as E1 and E2. 

The IS200EXHSG4A is equipped with several integrated transistors and currents, as well as a few resistors and capacitors. There are a few locations on the board that are marked for some components but they are empty, the reason for these empty locations is due to the fact that the previous versions need these components but they are not needed for the IS200EXHSG4A version of the board. 

This board, while now mostly obsolete can still be found on the market new or used. AX Control Inc located in Raleigh North Carolina offers repair for your convenience, if your model cannot be repaired we aim to help you find one that can replace your previous model. For more information on this model, the recommended GEH-6632 manual is attached under the manuals tab.

Frequently Asked Questions about IS200EXHSG4A

As the final model in the EXHS group, what redundancy mode does the IS200EXHSG4A model operate in?

The EXHSG4 model operates in simplex mode. 

What field circuit does the EXHSG4 model control?

The EXHSG4 model controls the breaker field circuit. 

Does the IS200EXHSG4A model control any specific boards?

Yes, the EXHSG4 model can control an EDEX board. 

How does the IS200EXHSG4A model differ from the previous models?

The main difference between the EXHSG4 model and the previous models are which redundancy type the model operates in, which field circuit the board controls, as well as if the model uses one or both of the relays. The EXHSG4 model uses both the trip and closed relays. 

Reviews For IS200EXHSG4A

Internal Review

The IS200EXHSG4A is the fourth and final version of the models within the EXHS series of models, this model has several marked components but they do not need to be used for this board to operate as needed. - AX Control Technician

Repair Services For IS200EXHSG4A

Type Lead Time Price Action
Repair Service 1-2 weeks $1365

Our highly skilled technicians can repair your IS200EXHSG4A. All of our repairs come with a 3 Year AX Control Warranty. Please contact us for additional information about our repair process. To receive the repair pricing and lead time listed above please process your repair order via our website. The following repair options may be available upon request:

  • 48-72hr Rush Repair
  • Detailed Repair Reports
  • AX Control Certificate of Warranty

AX Control Warranty Info

All products we sell are backed by our unparalleled warranty. A warranty certificate will be provided with your order upon request.
All PLCs, HMIs, and Turbine Control Boards: 3 Years
All AC/DC and Servo Drives: 2 Years
All Motors: 1 Year
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