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.

Benefits
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Fast and smoother operation with full control of speed adjustments.
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Three simple buttons enable total digital control of all door functions, parameters and positioning.
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UL/cUL listed controller and complete assembly in a NEMA 4X enclosure.
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Easy to read vacuum fluorescent display provides scrolling messages and easy to understand instructions.
Construction
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