GE Zenith Controls MX200 advanced microprocessor controller is designed for the most demanding transfer or bypass switch applications. It may be specified with standard options or programmed to use any or all of the most commonly used options for today's transfer switch operation. It also may be equipped with our ZNET200 remote communication interface for use with annunciators, modems or PC control. The MX200 manages switch operation via a convenient touchpad that provides indication setting and diagnostic capabilities. As an embedded digital controller, the device offers high reliability and ease of unattended operation across a range of applications. Electrical Ratings Ratings 40 to 3000 amps (2, 3 or 4 poles) UL1008 listed at 480 VAC CSA certified at 600 VAC Performance Features Multipurpose display: LEDs for continuous monitoring of switch position and source availability; a four-line by 20-character, backlit LCD display for settings, functions, programming and annunciation Through-the-door programming and display Simplified keypad entry?2014menu-driven system is designed for ease of use Built-in diagnostics with displays for ease of troubleshooting Passcode protected to limit user access Timer countdown display for ease of operation User settings unaffected by power outages Wide range of accessories and configurations available for the most demanding applications Design and Construction Features Close differential three-phase under-voltage sensing of the normal source?2014factory standard setting 90% pickup, 80% dropout (adjustable); under-frequency sensing of the normal source factory setting 95% pickup (adjustable) Voltage and frequency sensing of the emergency source?2014factory standard setting 90% pickup voltage, 95% pickup frequency (adjustable) Test switch (fast test/load/no load) to simulate normal source failure?2014automatically bypassed should the emergency source fail Type 1 enclosure is standard; also available in open style or Types 3R, 4 or 12 Double-throw, mechanically interlocked contactor mechanism Electrically operated, mechanically held Designed for emergency and standby applications