Description
Product Specifications
| Attribute | Specification |
|---|---|
| Model Number | IS200ECTBG2A-DE |
| Product Type | Exciter Contact Terminal Board |
| Series | EX2100 / EX2100e Excitation System |
| Application | Excitation Control and Feedback |
| Inputs/Outputs | Dry Contact Inputs / Relay Outputs |
| Dimensions | 165 mm x 178 mm |
| Weight | 0.62 kg |
| Origin | USA |
| Hardware Revision | G2A (Includes -DE specific revision) |
Application Fields
The IS200ECTBG2A-DE is a specialized interface board used within GE’s EX2100 and EX2100e Excitation Systems. It is primarily utilized in:
- Large-scale Synchronous Generator Excitation
- Power plant voltage regulation systems
- Hydroelectric, Steam, and Gas turbine power generation
- Field flashing and de-excitation control circuits
- Industrial grid synchronization and reactive power management
Product Instructions
- Mounting: The board is typically mounted on a DIN rail or within a dedicated terminal cabinet in the EX2100 control rack. Ensure the grounding straps are securely connected to the cabinet frame.
- Wiring: Connect the external field contact signals to the terminal blocks. This board serves as the physical interface between external field devices and the internal control logic of the excitation system.
- Redundancy Check: In redundant excitation systems, verify that the board is correctly addressed and linked to the corresponding control core (M1, M2, or C).
- Signal Testing: Use a digital multimeter to verify contact status at the terminals during commissioning. Ensure that high-voltage field wiring is isolated from low-voltage logic circuits before performing maintenance.

Product Q&A
Q1: What is the primary function of the ECTB board? A1: The Exciter Contact Terminal Board (ECTB) provides the interface for contact inputs and outputs that manage the excitation sequence, such as field breaker status, trip signals, and alarm contacts.
Q2: What does the “G2A” revision signify? A2: The “G” indicates the Group number, representing a specific hardware configuration or density of I/O. “2A” refers to the specific engineering revision level. Always match these codes when replacing boards to ensure electrical compatibility.
Q3: Can this board be replaced while the system is live? A3: While some GE boards support hot-swapping, it is highly recommended to de-energize the excitation cabinet or follow the specific “Online Repair” procedures outlined in the GE EX2100 manual to prevent accidental turbine trips.
Related Product Models
- GE IS200ECTBG1A
- GE IS200EMIOH1A
- GE IS200EDFFH1A
- GE IS215VPROH1B
- GE IS200STCIH1A

