SCR Power Controllers

Thyro-PX Series

Advanced SCR Power Controller Supports Load Currents Up to 5000 A

Built for demanding thermal applications, our high-performance Thyro-PX SCR power controller supports multiple operating voltages and control modes.

  • Large 2.8 in (71.1 mm) LED graphic display with integrated process data recorder and SD card
  • Digital and analog I/O options, with integrated memory for error tracking and energy consumption
  • Mains-load optimization features dynamic digital control and power monitoring
  • Overview
  • Technical Specs
  • Documents
  • Accessories
  • Service & Support
  • Distributors


50 years of experience are infused in the Thyro-PX®  series’ design and functionality. The SCR power controller is available in single-, dual-, and three-phase units, supports voltages from 690 V and 5000 A, and offers superior interface options. Integrate operating modes and parameters seamlessly with the 2.8-inch, LED Thyro-Touch display. And enable efficient system parameters, loading, and storage via an on-board SD-card. Thyro-PX power controller is ideally suited for your transformer and resistive loads for glass, metal, and ceramic manufacturing. It is optimal for heating elements in electric furnaces.


  • Minimize peak kVA demand via MoSi and TAKT load management
  • Precisely regulate power, including load management, for optimal control and energy consumption
  • Customize faults, alarms, status, limits, and set points to easily integrate with existing control systems
  • Intuitively set up and commission using an integrated touch-screen display


  • 32-bit micro, 1.5 M measurements per sec, and 15-bit resolution, better than 0.5% accuracy
  • Integrated mains-load optimization (dASM) with digital control
  • Integrated soft starting for operation with downstream transformer
  • Integrated Thyro-Touch display
  • Seamless integration to Rockwell Automation® Studio5000® automation software via available add-on profiles (AOPs); simplify setup and commissioning using predefined tags
  • Rated Voltages

    Up to 690 V

  • Rated Currents

    Up to 5000 A

  • Frequency

    47 to 63 Hz

  • Fuses

    Integrated semiconductor fuse

  • Interface

    • USB interface for Thyro-Tool Software
    • RS232 interface for Thyro-Touch Display
  • Operating Modes

    TAKT, VAR, VSC, Soft start, soft down

  • Safety Certifications

    CE, UL 508 (8 – 350A), Canadian C22.2 No. 14

Specifications are subject to change without notice. Not all options and accessories are available for all models and configurations. Dimensions listed generally refer to standard configurations and module bodies only. Please confirm technical specifications and customizations with a sales representative. Advanced Energy is not responsible for errors or omissions.

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Thyro-PX Series Power Controller


Voltage Range

230 to 690 V

230, 400, or 500 V

230 to 600 V

230 to 500 V

Current Range

16 to 5000 A

8 to 350 A

8 to 1500 A

16 to 650 A

Operating Resolution


±3.0 %

±3.0 %


Display Screen

2.8 in (71.1 mm) LED touch screen



LED screen

Power Mains & Load Monitoring





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