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3 year warranty

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Model IS200ESELH3A is an Exciter Selector Board in the EX2100 series. The ESEL boards increase in redundancy level with each group, this model has six bridge drivers. Typically this model will need to have two ESEL boards if being used with redundant controls.



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  • Part Number: IS200ESELH3A
  • Manufacturer: GE Industrial Systems
  • Series: EX2100 Excitation Control

IS200ESELH3A Technical Specifications

Board Description Exciter Selector Board
Board Type Control Board
Group Variation 3
Manufacturer General Electric Company USA, GE Industrial Systems
Number of Bridge Driver(s) Six
Series EX2100 Excitation Controller
User Manual(s) GEH-6632, GEI-100456

Product Description

Exciter Selector Board model number IS200ESELH3A is used primarily for corresponding with the EMIO board by sending gate pulse signals, the signals used by the EMIO board will then be sent to one of the EGPA boards through up to six sets of cables, when these signals have been sent to the EGPA boards it will help with firing SCRs. 

As the third and final group of ESEL boards the IS200ESELH3A board will use a different number of bridge drivers, this board contains six bridge drivers. When being used in conjunction with EGPA models and the EGPA models are mounted in the power conversion cabinet if there are any redundant control models there must be two ESEL boards. 

The IS200ESELH3A board has very little information or market availability. Although this board is mostly obsolete AX Control does its best to keep this board in stock. There are two manuals that can be used with this board, one is the GEH-6632 which is typically used with the entire EX2100 series, and the other manual which is the GEI-100456 is a product-specific manual used with the IS200ESEL parts. 

Frequently Asked Questions about IS200ESELH3A

Is the IS200ESELH3A model the final ESEL model?

Yes. The third group is the final ESEL model available. 

Where will the ESEL board be connected when being used with an EBKP model?

When the ESEL board is connected to an EBKP backplane the ESEL will be mounted in Controllers M1 and M2. While Section C selects the ESEL board for feedback usage, the section is not directly responsible for gate firing, therefore the ESEL board is not mounted in this section. 

The ESEL board receives SCR gating signals. Where do these signals come from?

The SCR gating signals come from the DSPX board through its various I/O interfaces and loop bridge control/protection functions. 

What pages can I find information on regarding the ESEL boards in the GEH-6632 manual?

The following pages contain information on the ESEL boards in the GEH-6632 manual: 2-6, 2-11, 2-14, 3-1, 3-2, 3-4, 3-5, and 3-7. 

Reviews For IS200ESELH3A

Internal Review

The IS200ESELH3A board is the third and final of the IS200ESEL models, this model has the best redundancy level and is used with six bridge drivers. Please note that this board is mostly obsolete at this time and thus if your board obtains any damage it will need to be repaired immediately. - AX Control Technician

Repair Services For IS200ESELH3A

Type Lead Time Price Action
Repair Service 1-2 weeks $990

Our highly skilled technicians can repair your IS200ESELH3A. 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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