GE DS200RTBAG4AHC

At a Glance

The GE DS200RTBAG4AHC is an industrial relay interface PCB used within compatible GE Mark V control equipment. Product references describe it as a Relay Terminal Board, with the RTBA functional designation. It is also listed for EX2000-related applications.

Instead of performing standalone PLC processing, the board focuses on relay switching and field-side interfacing. This makes it an important board-level component in systems where external devices must be connected to GE control electronics.

Identification

• Manufacturer: General Electric
• Model: DS200RTBAG4AHC
• Product Family: Mark V DS200
• Functional Designation: RTBA
• Board Type: Relay Terminal Board
• Relay Count: 7
• Relay Type: Form C DPDT
• Diagnostic Feature: Relay status LEDs

The complete part number should be used when sourcing a replacement because the DS200RTBA family contains multiple variations with different relay and coil configurations.

Functional Role

The board acts as a relay-based interface between the control system and external circuits. Its relay contacts can be used for external customer interfaces, while associated connectors link the board with other control hardware.

A combination of terminal blocks, plug-in connections, jumpers, and relay circuits provides flexibility during system integration and maintenance.

Key Characteristics

Relay switching: Seven relays provide the primary switching functions identified for this board.

Visual diagnostics: Individual indicators provide a convenient way to observe relay activation.

Configurable connections: Jumpers and connector interfaces allow the board to accommodate the intended system configuration.

Field wiring access: Terminal connections provide direct access to external circuits.

Legacy compatibility: The board is suitable for maintenance programs involving older GE Mark V equipment.

Typical Use Cases

This board can be relevant to a range of industrial power-generation and control applications, including:

• Turbine auxiliary control
• Generator excitation equipment
• Drive and exciter cabinets
• External relay interfaces
• Industrial automation panels
• Mark V system repair
• Planned control-system refurbishment

For an existing installation, the original system documentation should be used to determine the precise circuit function of each terminal and relay.

Maintenance Guidance

Before handling the board, shut down and isolate the associated equipment according to the site’s electrical safety procedures. Never assume that a terminal is safe simply because the main controller is powered down.

Record every wire and connector position before removal. Check the relay status LEDs and terminal condition during troubleshooting. Loose wiring or damaged contacts can produce symptoms that resemble a failed PCB.

The board should be handled with appropriate ESD precautions. Keep replacement units in protective packaging until installation.

Replacement Notes

When replacing this board, compare the relay arrangement, connector layout, jumper positions, and board markings with the existing assembly. This is especially important when working with different RTBA variants.

The DS200RTBAG4AHC is therefore best treated as a specialized GE relay-interface component rather than a generic relay board. Correct identification and configuration matching are essential for reliable integration into the existing control system.