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Bryant Unlimited

Contact Bryant Unlimited

Bryant Unlimited
020 8404 4050
70b Stafford Road,

About Bryant Unlimited

Bryant Unlimited recently launched the World’s most intelligent Mains Distribution Unit for the control of equipment in 19” broadcast or IT server racks.

The all new “eyePower” 14 way Mains distribution unit (MDU) offers unrivalled measurement and control of mains power distribution in technical environments. Real time data extends far beyond voltage and current, delivering invaluable safety, reliability and cost management data. eyePower users improve system uptime and can demonstrate their commitment to a safe installation.


The eyePower MDU excels in its range of measurements and class leading resolution. Real world systems experience shows that measuring live/neutral voltage is a simplistic view of the mains since most modern power supplies accept a wide variation in voltage and live supply faults are fuse protected anyway. A number of different measurements are required to gain a true picture of a technical mains supply in service, many issues can also be localised so tests should be at the final distribution. eyePower units display high resolution measurements as graphs which are better than numbers alone to illustrate a problem such as distorted mains waveforms or low power factors.

eyePower senses individual fuse failure and also checks relay operation for each outlet, allowing detection of faults when an outlet is turned on or off. This requires 28 measurements just for mains presence, but employs advanced circuitry that uses less total power than competitors measuring just one mains presence signal.

eyePower units support Maxim 1-Wire (R) for multiple temperature and humidity sensors, optionally extending GPIOs beyond the four GPIOs already available on the unit to support items such as access switches and smoke detectors.


The macro language to control outlets and GPIO outputs can be customised to sequence on, cycle power, or load shed/restore according to changeover or UPS operation for example. Routines can be initiated according to GPI, serial command, TCP control or via the web browser. eyePower now treats the front panel as a GPI, allowing the unit to be programmed with a number of outlets under front switch control while others are 24 hour or remote control powered.

eyePower includes a front panel, full colour OLED display as standard for local monitoring. Optional RS422 and 100Mbit/s Ethernet interfaces allow setup and control using Bryant Unlimited's Windows(TM) software, third party control systems such as BNCS or Skyline, the integrated web browser, SNMP or TCP data interrogation and control.

Mains fault conditions can be destructive before fuses disconnect so Bryant Unlimited MDUs exclusively offer wired and bus bar distribution. Printed circuit boards (PCBs) are used only for control circuits. Internal wiring is fully 20 amp capable to match the 20 amp powerCON inlet, there is no need for an inlet fuse or breaker which would offer limited fusing discrimination with the supply or outlet fuses.

All of Bryant Unlimited mains units are manufactured in their own ISO 9001:2008 certified UK factory.

All units are built to comply with EN 60950 and EN 55022 Class B.

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