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The IS200EACFG2B is a 1000V Exciter AC Feedback Board included in the GE Energy EX2100 Excitation Control Series. This specific model of EACF is a B revision board and continues to be available on the industrial automation surplus market despite having been discontinued by GE.



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  • Part Number: IS200EACFG2B
  • Manufacturer: GE Industrial Systems
  • Series: EX2100 Excitation Control

IS200EACFG2B Technical Specifications

Abbreviation EACF
Board Type 1000V Exciter AC Feedback Card
Connections Coil Inputs Terminal Strip, Qty 3 RS232
Dimensions Length: 13 Inches Width: 4 Inches
Manufacturer General Electric, GE Energy
Manufacturer Documentation GEI-100465A, GEZ-S2045
Part / Model Number IS200EACFG2B
Series / Product Line EX2100 Excitation Control
Version G2 - Single 3 Phase Input Voltage up to 1000 V rms
Weight 2lbs 2oz

About the IS200EACFG2B

Exciter Alternating Current Feedback Board (EACF) Board IS200EACFG2B is part of the EX2100 Innovation Series which is produced by General Electric Company USA. This module is version B of the IS200EACFG2 module and operates at 1000 VRMS. The IS200EACFG2B module is visually the same as the previous module, with the same four transformers located along the board, with the same base-level assembly as the previous module. 

The IS200EACFG2B module must be attached to an EBKP module which is also found within the EX2100 Innovation Series. When connecting the EBKP module you will do so through the three nine-pin sub-D connectors on the side of the IS200EACFG2B module. The three connectors are labeled as J504, J509, and J514. These three connectors are vital when connecting the EACF module because the EACF model does not have any indicators to inform the user of what is occurring with the IS200EACFG2B feedback board. The primary function of the IS200EACFG2B board is to bridge the ac supply voltage and the current feedback together. 

The best manuals to use when installing and using the IS200EACFG2B module are GEI-1004888 EX2100 Excitation System Manual and the GEH-6632 EX2100 Excitation Control User’s Guide. 

Frequently Asked Questions about IS200EACFG2B

Where is the IS200EACFG2B board located?

When mounted and in its proper location the IS200EACFG2B will be in the Exciter Auxiliary Cabinet. 

What is the function of the J5004 Connector on the IS200EACFG2B board?

The J504 Pin Connector functions similarly to the TB1, TB2, TB3, and TB4 Terminals. Each pin on the J504 connection has a specific function, for example, the second and seventh pins are both current transformer signals, pin six is the CT signal 1, positive, and pin seven is the CT signal 2, positive. 

Where can I find information on the IS200EACFG2B model?

Information on the IS200EACFG2B board can be found in the GEH-6632 EX2100 Excitation Control User's Guide as well as the part-specific GEI-100465A Exciter AC Feedback Board User's Guide. 

Is there a difference between the IS200EACFG2A and IS200EACFG2B boards?

According to the manual, there are no differences between the IS200EACFG2A and IS200EACFG2B boards. 

Reviews For IS200EACFG2B

Internal Review

The GE Energy IS200EACFG2B is an Exciter AC Feedback Board rated at 1000V. The G2B revision generally does have surplus available and is a relatively inexpensive repair if no replacement option exists - AX Control Tech Team

Repair Services For IS200EACFG2B

Type Lead Time Price Action
Repair Service 1-2 weeks $1145

Our highly skilled technicians can repair your IS200EACFG2B. 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

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