Performance Under Control™

With greater functionality and unprecedented efficiency, Rytec's next-generation System 4® door controller takes performance to a whole new level.

The new System 4® is faster, smarter, smaller and easier to install than other high-speed door controllers. The intelligent processor and variable frequency drive generate an energy-efficient speed curve for smooth motion, soft starting and soft stopping.

System 4


  • Fast and smoother operation with full control of speed adjustments.

  • Three simple buttons enable total digital control of all door functions, parameters and positioning.

  • UL/cUL listed controller and complete assembly in a NEMA 4X enclosure.

  • Easy to read vacuum fluorescent display provides scrolling messages and easy to understand instructions.


  • NEMA 4X Polycarbonate Plastic Enclosure

  • 208VAC, 230VAC 1-Phase or 3-Phase or 460VAC 3-Phase Power

  • Variable Frequency Drive

  • Absolute Encoder

  • Low-Voltage Color-Coded Terminals


  • 575 Volt / 3-Phase Power