Description
⚙️ Product Description
The GE IS200ECTBG1A is an Exciter Contact Terminal Board (ECTB) used in GE EX2100 excitation control systems associated with the Mark VI platform. The board provides contact input and relay output interfacing between the excitation control system and external field wiring. The IS200ECTBG1A is the redundant-mode version of the ECTB family and supports six auxiliary contact inputs, two dedicated trip contact outputs, and four general-purpose Form-C relay outputs. The auxiliary inputs are wetted with 70 VDC, while the relay outputs are controlled through the associated EMIO interface. The board uses the IS200ECTBG1ADE revision identifier and is intended for integration into the appropriate EX2100 redundant architecture. The listed condition is New – Open Box, making part-number and revision verification important before installation.
📋 Product Datasheet
| Parameter | Specification |
|---|---|
| Brand | General Electric (GE) |
| Model | IS200ECTBG1A |
| Revision / Alternate Marking | IS200ECTBG1ADE |
| Series | EX2100 Excitation Control / Mark VI |
| Product Name | Exciter Contact Terminal Board |
| Functional Acronym | ECTB |
| Product Type | Contact I/O Terminal Board |
| Operating Mode | Redundant |
| Auxiliary Contact Inputs | 6 |
| Trip Contact Outputs | 2 |
| Form-C Relay Outputs | 4 |
| Input Wetting Voltage | 70 VDC |
| Output Controller | EMIO interface |
| Power Source | M1 and M2 power supplies in the redundant EX2100 configuration |
| Origin | USA |
| Product Status | New – Open Box |
| Dimensions | Verify actual board and mounting dimensions before installation |
| Weight | Approx. 3 lb reference value |
| Discontinued | Legacy GE Mark VI / EX2100 component |
🔧 Functional Features
• Provides contact I/O termination for the GE EX2100 excitation system
• Supports six general-purpose auxiliary contact inputs
• Provides two dedicated trip contact outputs
• Provides four general-purpose Form-C relay contact outputs
• Designed for redundant operation
• Auxiliary contacts use 70 VDC wetting voltage
• Relay output status and coil feedback are interfaced with the control electronics
• Connects external contact wiring with the excitation control architecture
• Suitable for GE Mark VI / EX2100 maintenance and replacement applications
❓ Frequently Asked Questions
Q1: What is the IS200ECTBG1A used for?
A: It is an Exciter Contact Terminal Board used to interface external contact inputs and relay outputs with a GE EX2100 excitation control system.
Q2: Is IS200ECTBG1A a Mark VI board?
A: Yes. It is associated with the GE Mark VI platform and EX2100 excitation control architecture.
Q3: Is this board for simplex or redundant operation?
A: The G1A version is intended for redundant operation. The corresponding simplex ECTB version uses a G2 designation.
Q4: How many contact inputs does the board provide?
A: The ECTB provides six general-purpose auxiliary contact inputs, with additional dedicated contact functions associated with the excitation system.
Q5: How many relay outputs are available?
A: The board provides four general-purpose Form-C relay outputs and two dedicated trip contact outputs.
Q6: What is the 70 VDC specification used for?
A: The ECTB provides 70 VDC wetting voltage for its auxiliary contact inputs.
Q7: What should I check before installing a replacement?
A: Confirm the complete part number, revision marking, redundant/simplex configuration, connector arrangement, system backplane configuration, and field wiring. The physical board should match the existing installation before energizing the system.
🛠️ Troubleshooting & Safety
If the board does not operate correctly, inspect the connectors, terminal wiring, input contact circuits, relay outputs, fuses or protective components, and associated M1/M2 power connections. Verify that external wiring matches the approved system drawings. Because this board interfaces with excitation and generator control circuits, power should be isolated and appropriate electrical safety procedures followed before inspection or replacement.
⭐ Recommended Same-Brand GE Models
- GE IS200ECTBG2A — Exciter Contact Terminal Board, Simplex Version
- GE IS200EBKPG1A — EX2100 Exciter Control Backplane
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