Description
Core Product Summary
The General Electric DS200RTBAG3AFB (also designated as DS200RTBAG3A) is a relay terminal board engineered for deployment within the Mark V control system architecture. Operating primarily as an interface circuit board, it bridges control system logic with external field equipment by managing switching operations, routing control signals, and terminating input/output lines securely within industrial cabinets.
Designed to interface directly with matching LAN I/O boards such as the LTB series, the board incorporates high-reliability electromechanical relays with Form C contact configurations (DPDT and 4PDT) to handle intermediate load switching. Integrated AC Metal-Oxide Varistors (MOVs) provide board-level transient voltage protection, safeguarding internal processor electronics and connected instrumentation from inductive switching spikes and power surges.
Key Technical Specifications
| Parameter | Specification |
| Manufacturer | General Electric (GE / GE Industrial Systems) |
| Product Series | Mark V DS200 |
| Model / Order Code | DS200RTBAG3AFB (Base design: DS200RTBAG3A) |
| Product Type | Relay Terminal Board (RTBA) |
| Associated I/O Board | LTB LAN I/O Terminal Board |
| Relay Configuration | Form C (DPDT, 4PDT types) with standard coil voltage ratings |
| Transient Protection | Integrated AC MOVs (Metal-Oxide Varistors) |
| Field Termination | Screw-type terminal blocks for secure wire retention |
| Maintenance Feature | Individually replaceable plug-in style relays |
Detailed Product Overview
The GE DS200RTBAG3AFB functions as a critical input/output relay terminal node within Mark V turbine and industrial automation control systems. In complex plant environments, control cabinets require robust signal isolation and robust switching interfaces to manage heavy-duty actuators, solenoid valves, and status feedback lines safely. This terminal board manages these signals while providing a physical transition layer between cabinet wiring and internal control electronics.
Engineering considerations for the DS200RTBAG3AFB focus on ease of maintenance and electrical protection. The circuit board utilizes individually replaceable relays mounted onto sockets, allowing technicians to swap worn or faulted components without replacing the entire terminal assembly. Integrated surge suppression components, including AC MOVs, absorb high-voltage transients generated by inductive loads, ensuring reliable operation in electrically harsh power generation and industrial environments.
DS200RTBAG3AFB
DS200RTBAG3AFB
Dimensions, Mounting & Connection Notes
- Mounting Configuration: Designed for standard installation inside GE Mark V heavy-duty control cabinets on dedicated mounting brackets or standoffs.
- Terminal Connections: Uses fixed screw terminal blocks to secure incoming and outgoing field signal wires.
- Transient Suppression: Features built-in protective MOVs across switching circuits to clamp voltage spikes.
- Handling Precautions: Standard electrostatic discharge (ESD) wrist straps and safe handling procedures must be applied when servicing or installing the board.
System Compatibility & Integration Requirements
| Item / Dependency | Verified Compatibility or Requirement | Practical Note |
| Control System Family | GE Mark V Distributed Control System | Designed specifically to populate Mark V rack and cabinet layouts. |
| Associated Module | LTB LAN I/O Terminal Board | Connects closely with system LAN input/output boards for data exchange. |
| Field Wiring | Standard copper instrumentation and control cables | Connected via onboard screw terminal blocks. |
FAQ
What is the GE DS200RTBAG3AFB?
The GE DS200RTBAG3AFB is a relay terminal board (RTBA) designed for use within General Electric’s Mark V control system architecture.
Which system series uses the DS200RTBAG3AFB board?
It belongs to the GE Mark V (DS200) series of industrial control and turbine management hardware.
What is the primary function of the relay terminal board?
It provides signal routing, interface switching, and line termination between field-level devices and the internal control system electronics.
Which I/O board is associated with this terminal board?
The DS200RTBAG3A works in coordination with the LTB LAN I/O terminal board.
Are the relays on the DS200RTBAG3AFB replaceable?
Yes, the board features individually socketed, replaceable relays to simplify maintenance and field servicing.
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