Description
🔹 Product Description
The GE General Electric IS200ERBPG1A, with assembly designation IS200ERBPG1ACA, is an Exciter Regulator Backplane (ERBP) used in GE EX2100 excitation control systems and associated Mark VI turbine control architectures. The backplane provides the central electrical interconnection between multiple regulator-control boards and distributes power and communication signals within the excitation control rack.
The IS200ERBPG1A supports the interconnection of boards such as ACLA, DSPX, ERIO, EPSM, ERDD, EROC, and optional EISB modules. It includes power connections at TB1 and TB2 and a keypad connection at J4. Depending on the system configuration, the ERBP can be used in simplex or redundant operating arrangements.
🔹 Product Datasheet
| Parameter | Value |
|---|---|
| Brand | General Electric (GE) |
| Model | IS200ERBPG1A |
| Assembly Designation | IS200ERBPG1ACA |
| Series | EX2100 / Mark VI |
| Functional Acronym | ERBP |
| Product Name | Exciter Regulator Backplane Board |
| Product Type | Backplane / Rack Interconnection Board |
| Main Function | Regulator board interconnection and power distribution |
| Operating Mode | Simplex or Redundant |
| Compatible Boards | ACLA, DSPX, ERIO, EPSM, ERDD, EROC, EISB |
| Power Connections | TB1 Positive / TB2 Negative |
| Keypad Connector | J4 |
| Application | Generator excitation and voltage regulation |
| Product Status | Legacy / obsolete; verify lifecycle |
| Condition | Verify actual unit condition |
| Dimensions | Approx. 16 × 16 × 12 cm; verify actual assembly |
| Weight | Approx. 3 lb / 1.36 kg; verify actual unit |
| Origin | USA |
| Installation | EX2100 regulator control rack |
🔹 Common Questions & Answers
Q: What is the IS200ERBPG1A?
A: It is a GE Exciter Regulator Backplane used in EX2100 excitation control systems and associated Mark VI architectures.
Q: What does ERBP stand for?
A: ERBP stands for Exciter Regulator Backplane.
Q: What is the main function of the ERBP?
A: It provides the electrical interconnection and signal/power distribution path between the boards installed in the EX2100 regulator control section.
Q: What is the difference between IS200ERBPG1A and IS200ERBPG1ACA?
A: IS200ERBPG1A identifies the base functional assembly, while IS200ERBPG1ACA is the complete part/assembly designation including the specific revision configuration. Always match the complete board marking when ordering a replacement.
Q: Which boards can be installed with the ERBP?
A: The ERBP is associated with ACLA, DSPX, ERIO, EPSM, ERDD, EROC and optional EISB boards, depending on the specific EX2100 configuration.
Q: Does the IS200ERBPG1A support redundant operation?
A: Yes. Technical references identify simplex and redundant operating configurations for this backplane.
Q: What are TB1 and TB2 used for?
A: TB1 and TB2 are the primary positive and negative power connections on the backplane. The documented configuration identifies TB1 as positive and TB2 as negative.
Q: What should I check before ordering?
A: Verify the complete IS200ERBPG1A/IS200ERBPG1ACA designation, revision, connector layout, installed regulator boards, rack configuration, and original EX2100 documentation.
Q: Can this backplane replace any GE Mark VI backplane?
A: No. Backplanes are system- and configuration-specific. Confirm the EX2100/Mark VI architecture, board population, connector arrangement, and complete part number before replacement.
Q: Is the IS200ERBPG1A still in current production?
A: It is a legacy GE EX2100/Mark VI component with limited market availability and is generally handled as a replacement or maintenance part.
Q: What safety precautions apply?
A: De-energize and isolate the excitation control cabinet before removing or installing the backplane. Follow the applicable GE procedures for grounding, stored energy, and board handling.
🔹 Recommended GE Models
- IS200ERBPG1ACA | Exciter Regulator Backplane Board
- IS200ERBPG1B | Exciter Regulator Backplane
- IS200ERBPG1BA | EX2100 Exciter Regulator Backplane
- IS200EPSMG1A | Excitation Power Supply Module
- IS200DSPXH1A | Digital Signal Processor Board
- IS200ACLAH1A | AC Line Interface Board
- IS200ERIOH1A | Exciter Regulator I/O Board
- IS200ERDDH1A | Exciter Regulator Drive/Distribution Board
- IS200EROCH1A | Exciter Regulator Output Board
- IS200EISBH1A | Exciter Interface Board
- IS200EBKPG1A | Exciter Bridge Backplane
- IS200EBKPG1BA | Exciter Bridge Backplane Board
- IS200EXAMG1A | Exciter Attenuation Module
- IS200EXHSG1A | Exciter High-Speed Interface Board
- IS200VCRDH1B | Voltage/Current Reduction Board



