⚙️ Product Introduction
The GE IS200HFPAG1ADC is a High-Frequency AC/Fan Power Supply Board designed for the GE Mark VI turbine control system. It is used to provide dedicated power outputs for high-frequency and fan-related circuits within GE Mark VI cabinets.
The board can accept AC or DC input power and convert it into several isolated or regulated outputs used by associated equipment. Available technical references identify the IS200HFPAG1ADC as an HF AC Supply Board rather than a processor board.
🔧 Key Features
• GE Mark VI turbine control component
• High-frequency AC power supply function
• Fan power supply capability
• Multiple voltage output configurations
• Two transformers
• Two heat sinks
• High-voltage capacitors
• Four protective fuses
• Metal-oxide varistor protection
• Dual power-status LEDs
• Multiple input and output connectors
📋 Product Datasheet
• Brand: GE General Electric
• Model: IS200HFPAG1ADC
• Product Type: High-Frequency AC / Fan Power Supply Board
• Product Family: Mark VI
• System: GE Speedtronic Mark VI
• Main Function: AC and Fan Power Conversion
• Input: AC or DC, system-dependent
• Output: 48 VAC square wave / 48 VDC / isolated 17.7 VAC, configuration dependent
• Protection: Fuses + MOV surge protection
• Transformers: 2
• Heat Sinks: 2
• Power Indicators: 2 LEDs
• Connectors: 4 stab-on connectors + 8 female plugs
• Power Consumption: System-dependent
• Dimensions: Approx. 380 × 120 × 50 mm*
• Weight: Approx. 1.2 kg*
• Mounting: Mark VI cabinet / board carrier
• Operating Temperature: System-dependent
• Country of Origin: USA
• Application: Turbine Control / Industrial Power Supply
🏭 Typical Applications
The IS200HFPAG1ADC is used in GE Mark VI steam and gas turbine control installations. It can be found in control cabinets where dedicated high-frequency AC, DC, or fan power is required.
The Mark VI system provides turbine control functions including startup, shutdown, speed control, temperature control, vibration monitoring, and protective functions. The HFPAG board supports the power requirements of associated cabinet electronics rather than performing the primary processor function.
⚡ Power Conversion Function
The board receives an AC or DC input and converts it into output voltages required by connected equipment. Available technical documentation identifies outputs including 48 VAC square wave, 48 VDC, and isolated 17.7 VAC, depending on the application and configuration.
The board incorporates two transformers, high-voltage capacitors, fuses, and an MOV to provide power conversion and circuit protection. Two LEDs provide visual indication of power status.
🔌 Electrical Connections
The IS200HFPAG1ADC uses multiple connectors for power input and output connections. Available descriptions identify four stab-on connectors and eight female plugs. The exact wiring configuration depends on the Mark VI cabinet and the equipment connected to the board.
🛠️ Installation Notes
Before replacement, verify the complete part number IS200HFPAG1ADC, board revision, cabinet location, input-voltage configuration, connector arrangement, and associated fan or high-frequency equipment.
Disconnect and isolate the Mark VI cabinet according to the applicable maintenance procedure before removing the board. High-voltage capacitors may retain electrical energy after shutdown, so appropriate discharge and electrical-safety procedures must be followed.
After installation, inspect all connectors and fuses, verify the board seating, and check the power-status LEDs. Confirm the required output voltages before reconnecting sensitive downstream equipment.
📦 Ordering Information
Please match the exact IS200HFPAG1ADC part number and board revision when purchasing a replacement. The referenced marketplace listing describes the item as a processor board, but available technical references identify this part number as a High-Frequency AC/Fan Power Supply Board.
The exact electrical output configuration should be verified from the original board marking and host Mark VI cabinet documentation before installation.
*Dimensions and weight are reference values from available product listings and should be verified against the exact hardware revision before engineering or shipping use.






