DS3800NSCB1N - Speed Current Regulator Auxiliary Board

DS3800NSCB1N - Speed Current Regulator Auxiliary Board DS3800NSCB1N - Speed Current Regulator Auxiliary Board

World Of Controls understands the criticality of your requirement and works towards reducing the lead time as much as possible.

DS3800NSCB1N - Speed Current Regulator Auxiliary Board is available in stock which ships the same day.

DS3800NSCB1N - Speed Current Regulator Auxiliary Board comes in UNUSED as well as REBUILT condition.

To avail our best deals for DS3800NSCB1N - Speed Current Regulator Auxiliary Board, contact us and we will get back to you within 24 hours.


Part No: DS3800NSCB1N
Manufacturer: General Electric
Product Type: Speed Current Regulator Auxiliary Board
Voltage Ranges: +/-25mV,
Operating Mode: Simplex
Series: Mark IV
Availability: In Stock
Current Range: +/-20mA
Dimensions: 7.14 × 4 × 1.5 in
Operating Temperature: 0 to 50°C
Country of Origin: USA


DS3800NSCB1N is a Speed Current Regulator Auxiliary Board manufactured and designed by General Electric and is part of the Mark IV Series used in GE Speedtronic gas turbine control systems. The GE Speedtronic Speed Current Regulator Auxiliary Board is a critical component used in the Speedtronic control systems developed by General Electric. These systems are primarily employed in gas turbines and other industrial applications to provide precise control over motor speed and current. The auxiliary board enhances the functionality and reliability of the overall control system by ensuring optimal motor performance and protection.


Speed Regulation:

  • Objective: Maintain the gas turbine or motor at the desired speed.
  • Mechanism: Uses feedback from speed sensors (e.g., tachometers) to monitor actual speed and adjust power input accordingly, ensuring stable and efficient operation.

Current Regulation:

Objective: Control the current to prevent overloading and ensure efficient power usage.
Mechanism: Monitors current levels through sensors and adjusts the power supply to maintain safe and optimal current flow

Protection Features:

  • Overcurrent Protection: Automatically reduces or interrupts power supply if current exceeds predetermined safe levels to protect the motor and associated circuitry.
  • Thermal Protection: Shut down or reduce power to prevent overheating of the motor and other components.

Feedback Control:

  • Closed-Loop Control: Continuously adjusts motor operation based on real-time feedback, ensuring precision and stability.
  • Open-Loop Control: Can operate without feedback for simpler applications where less precision is required.


  • Microcontroller Interface: Allows integration with other control system components, enabling advanced control algorithms and programming.
  • Sensor Inputs: Connects to speed sensors, current sensors, and other monitoring devices to gather real-time operational data.
  • Actuator Outputs: Interfaces with motor drivers and actuators to control the motor's performance based on processed signals.
  • Communication Ports: Provides connectivity options such as CAN, UART, or I2C for communication with other control system elements.


Gas Turbines:

  • Speed Control: Ensures the turbine operates at optimal speed for efficiency and safety.
  • Current Management: Prevents overcurrent conditions that could damage the turbine or its control systems.

Industrial Automation:

  • Conveyor Systems: Maintains consistent speed and torque for smooth operation of conveyor belts.
  • Robotic Systems: Enables precise control over robotic arms and other automated machinery.

Power Generation:

  • Wind Turbines: Manages the speed of turbine blades to maximize energy capture and protect the system from overloads.
  • Solar Trackers: Controls motors that adjust the orientation of solar panels for optimal sunlight exposure.

Oil and Gas:

  • Pump Control: Regulates the speed and current of pumps to ensure efficient extraction and processing.
  • Compressor Control: Maintains optimal performance and safety of compressors in various applications.


  • Identify Requirements: Determine the specific needs of your control system, including motor specifications and desired performance parameters.
  • Select the Board: Choose the appropriate GE Speedtronic Speed Current Regulator Auxiliary Board that matches your system's requirements.
  • Connect Components: Properly connect sensors, actuators, and communication interfaces to the board.
  • Programming and Configuration: Program the board using the provided software or firmware to meet your control objectives.
  • Testing and Calibration: Thoroughly test the system to ensure proper operation and make necessary adjustments for optimal performance.

WOC has the largest stock of replacement parts for GE Speedtronic Gas turbine control systems. We can also repair your faulty boards and supply unused and rebuilt boards backed up with a warranty. Our team of experts is available round the clock to support your OEM needs. Our team of experts at WOC is happy to assist you with any of your automation requirements. For pricing and availability on parts and repairs, kindly contact our team by phone or email.


How does the board regulate motor speed?

The board regulates the motor speed by receiving feedback from speed sensors, processing this data, and adjusting the power supply to the motor to maintain the desired speed. This closed-loop control ensures stable and efficient motor operation.

How does the board protect against overcurrent?

The board monitors the current flow through sensors and compares it to predetermined safe levels. If the current exceeds these levels, the board automatically reduces or cuts off the power supply to prevent damage to the motor and associated components.

What types of motors can this board be used with?

The GE Speedtronic Speed Current Regulator Auxiliary Board is compatible with various types of motors, including those used in gas turbines, industrial machinery, and power generation systems.