الوصف
The GE DS2020FECNRX025A Field Exciter Module is a high-capacity printed circuit board (PCB) used in General Electric’s Mark V and DC2000 Digital Adjustable Drive control systems.1
Its primary function is to regulate the excitation current supplied to the field windings of a motor or generator, which is essential for precise control over the machine’s output voltage, speed, and overall stability.2
⚡ Key Specifications
| Feature | Specification/Description |
| Product Type | Field Exciter Module / Field Exciter Board (FECN) |
| Series/Family | GE Mark V Turbine Control Systems and DC2000 Drives |
| Shunt Rating (Key Identifier) | 25 Amps (25A). The “025” in the part number indicates a 25 Amp shunt for current feedback and monitoring. |
| Maximum Field Output | Supports excitation for motor fields up to 24 Amps. |
| Function | Field Excitation Control. Regulates the DC current to the field windings, acting as a voltage regulator. |
| Plugging Type | Non-Reversing (NRX), compatible with non-reversing field supplies (NRX or NRP). |
| Hardware | Features 7 jumpers (JP1-JP7) and 2 terminal blocks (with 3 terminals each) for configuration. |
| Common Use | Used in various industrial applications, including wind, gas, and steam turbine management and DC motor drives. |
Part Number Breakdown
The components of the part number define its features:
- DS2020: Designates the product family (DC2000/Mark V drive).3
- FECN: Stands for Field Exciter Control Non-Reversing.4
- RX: Indicates the type of conformal coating applied to the PCB for environmental protection.5
- 025A: Specifies the 25 Amp shunt rating and the revision level (A).6
The 25 Amp shunt rating is the most significant specification, as it determines the maximum current the on-board circuitry can accurately monitor and control in the motor or generator’s field circuit. This makes it one of the higher-capacity boards in the DS2020FECNRX series.




+86 15340683922
+86 15340683922