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.


  • 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


  • 575V/3-phase power