GE DS200RTBAG4AHC

Product Overview

The GE DS200RTBAG4AHC is a relay terminal board designed for GE Mark V industrial control equipment. It is identified as an RTBA relay terminal board and is associated with GE Mark V Speedtronic systems and EX2000 applications.

The board provides relay-based interfacing between control electronics and external field circuits. Its terminal connections and relay arrangement make it useful for signal switching, external control interfaces, and maintenance of legacy GE turbine-control installations.

Technical Specifications

Parameter	Details
Manufacturer	General Electric
Part Number	DS200RTBAG4AHC
Series	Mark V DS200
Functional Acronym	RTBA
Product Type	Relay Terminal Board
Relay Configuration	Form C / DPDT relays
Number of Relays	7
Status Indication	Individual diagnostic LEDs
Board Construction	Industrial PCB assembly
Typical Application	Turbine and excitation control systems

The available technical references agree that the board is an RTBA relay terminal board, although some third-party listings differ in their description of the exact system family. Therefore, the complete equipment configuration should be checked before replacement.

Main Features

• GE Mark V compatible relay terminal design.
• Seven relays are identified on the board.
• Form C DPDT relay contacts provide flexible switching.
• Individual diagnostic indicators assist troubleshooting.
• Jumper arrangements provide configuration options.
• Screw terminals simplify field wiring.
• Suitable for replacement and refurbishment of legacy GE control equipment.

Board Architecture

The board combines relay circuits, terminal connections, jumpers, cable interfaces, and diagnostic indicators on a single PCB assembly. According to available service information, the relays can interface with external customer circuits, while connectors provide links to associated Mark V terminal-board hardware.

The physical layout is intended to make field wiring accessible while keeping relay switching functions within the control cabinet.

Applications

The DS200RTBAG4AHC is suitable for compatible GE industrial control environments, particularly legacy turbine and excitation equipment. Typical applications include:

• Gas turbine control
• Steam turbine control
• Generator excitation systems
• Industrial drive cabinets
• Relay interface circuits
• Turbine-control refurbishment
• Legacy Mark V maintenance

Its exact role depends on the host system and the wiring configuration used at the installation.

Installation and Maintenance

Always isolate the equipment and relevant field circuits before removing the board. Before disconnecting wires, document their terminal positions and label the wiring carefully. This is particularly important because the board contains numerous field connections.

Inspect relays, terminals, connectors, jumpers, and diagnostic indicators during maintenance. Check for loose connections, overheating, corrosion, or physical damage.

When storing a spare board, use suitable antistatic packaging and keep it in a clean, dry environment. During replacement, confirm the complete DS200RTBAG4AHC identification and compare the board configuration with the original unit.

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