GE DS200TCRAG2A DS200TCRAG2ABC Relay Output Board for Mark V turbines. 16 SPDT relays, 5A contacts, opto-isolated, LED status, 0.62kg.Technical Specifications and Board Design
This relay output board provides discrete switching for GE Mark V turbine control systems. The GE DS200TCRAG2A DS200TCRAG2ABC drives solenoids, contactors, and indicator lamps reliably. You can install this board into any standard Mark V rack slot position. Its rugged construction handles continuous operation in high-temperature environments. The board weighs approximately 0.62 kilograms. Its dimensions measure 28 cm in height, 18 cm in width, and 2.5 cm in depth.
| Parameter | Specification |
|---|---|
| Brand | GE Energy / General Electric |
| Model | DS200TCRAG2A DS200TCRAG2ABC |
| Category | Relay Output Board / Discrete Output Card |
| Weight | 0.62 kg |
| Height | 28 cm |
| Length | 18 cm |
| Thickness | 2.5 cm |
| Number of Outputs | 16 relay outputs |
| Relay Type | Electromechanical, single-pole double-throw (SPDT) |
| Contact Rating (Resistive) | 5 Amps at 250V AC / 30V DC |
| Contact Rating (Inductive) | 2 Amps at 250V AC / 30V DC |
| Maximum Switching Voltage | 250V AC or 30V DC |
| Coil Voltage | 24V DC (from backplane) |
| Response Time (Operate) | 10 milliseconds maximum |
| Response Time (Release) | 5 milliseconds maximum |
| Mechanical Life | 10 million operations |
| Electrical Life | 100,000 operations at rated load |
| Isolation Voltage | 2000V AC between coil and contacts |
| Energy Storage | None (no battery) |
| Component Count | Single PCB with 16 relays, drivers, and LED indicators |
Output Configuration and Load Handling
Each of the sixteen relays provides a set of changeover contacts. You can wire each output as normally open or normally closed independently. The GE DS200TCRAG2A DS200TCRAG2ABC switches resistive loads like lamps and heaters easily. It also handles inductive loads like solenoids and small motor starters. Each relay includes a flyback diode across the coil for suppression. This diode prevents voltage spikes from damaging the driver circuits. The board provides an individual red LED for each relay. This LED illuminates when the turbine controller energizes the corresponding coil.
Signal Processing and Driver Circuits
The board receives output commands from the main turbine controller via the backplane. Driver transistors amplify the logic signals to energize each relay coil. The GE DS200TCRAG2A DS200TCRAG2ABC includes optical isolation between logic and field circuits. Consequently, backplane faults cannot affect the relay outputs. The board monitors each relay’s coil for open or short circuit conditions. A fault detection circuit reports any driver anomalies to the controller. The board defaults all outputs to a safe de-energized state during power loss.
Installation and Operational Guidelines
You must insert this board into a dedicated slot in the Mark V rack. The backplane supplies 5V and 24V DC power to the board automatically. The GE DS200TCRAG2A DS200TCRAG2ABC draws approximately 200 mA from the 5V supply. It draws additional current based on how many relays energize simultaneously. You should verify the total load current does not exceed 5 Amps per contact. Exceeding this limit will weld the relay contacts permanently. The board requires no external battery for normal operation. You should replace the entire board if any relay fails mechanically.
Details
| Weight | 0.91 kg |
|---|---|
| Dimensions | 273.6 × 214.1 × 59.2 mm |
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