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3 year warranty

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Model IS200ESELH1A is connected to an EMIO board and thus receives six logic level gate signals. This model is an IS200ESELH1 and only contains a single bridge driver. If while in the power conversion cabinet there are redundant controls, two ESEL boards will need to be used.



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  • Part Number: IS200ESELH1A
  • Manufacturer: GE Industrial Systems
  • Series: EX2100 Excitation Control

IS200ESELH1A Technical Specifications

Board Type Control Board
ESEL Group 1
Functional Acronym/Abbreviation ESEL
Number of Bridge Drivers One
Number of ESEL Boards Needed for Redundant Controls Two
Other Board Connection(s) EMIO

Product Description

The IS200ESELH1A is an Exciter Selector Board, this board was once produced by General Electric under the EX2100 series. When this board is being used it will receive six logic level pulse signals from the EMIO that it is connected to. The signals received will be sent up a set of six cables, and the signals are then distributed to EGPA boards. If while using this board redundant controls are being used two IS200ESELH1A models must be used. 

There are three different groups of ESEL boards, ESEL1, ESEL2, and ESEL3, depending on the group there will be a set number of bridge drivers, as this model is an ESEL1 model, only one bridge driver is needed. The ESEL model is integral to operating other boards within the EX2100 system, as mentioned above the ESEL model sends gate pulse signals to the EGPA board, once the signals have been received by the EGPA board the signals will then be used to control SCR gate firing. 

Two manuals can be used when installing and operating the IS200ESELH1A board, one is the GEH-6632 EX2100 Excitation Control User’s Guide, this manual is typically used for the EX2100 series but it contains information about the ESEL boards on page forty-eight; the other manual best used with this model is the GEI-100456 IS200ESEL Exciter Selector Board Manual.

Frequently Asked Questions about IS200ESELH1A

What is the printed wiring board type for the IS200ESELH1A model?

The IS200ESELH1A model is a control board. 

When being used in redundant mode how does the ESEL board operate?

While in the redundant mode two ESEL models need to be used, one will be driven by the M2 controller and the other will be driven by the M1 controller. The active ESEL, which is selected by controller C will send the necessary control signals to the EGPA boards. 

How is the ESEL board described?

The ESEL board is described as an Exciter Selector Board with gate pulse distribution from the active controller to the EGPA. 

What is the mounting location of the ESEL board?

The mounting location of the ESEL board is the power conversion cabinet. 

Reviews For IS200ESELH1A

Internal Review

The IS200ESELH1A board is only used with one bridge driver, which potentially caused issues in stability, the IS200ESELH2A model allows for more bridge drivers this more stability. - AX Control Tech Team

Repair Services For IS200ESELH1A

Type Lead Time Price Action
Repair Service 1-2 weeks $945

Our highly skilled technicians can repair your IS200ESELH1A. 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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