01 November 2012 Power supplies offer 94% efficiency Power supplies offer 94% efficiency Murata has announced the MVAC series of open frame ac/dc power supplies. Suitable for use in a variety of industrial factory automation, communications and medical equipment, the series comprises two single output models, the 250W MVAC250 and the 400W MVAC400 units. Both models are optimised to offer a typical efficiency of 94%. They accommodate the universal ac input voltage range from 90 to 264 VAC with active power factor correction and active inrush control. Each model is available with a nominal output voltage of 12, 24 or 50VDC. The devices come packaged in an industry standard 1U open frame format measuring 127 x 76.2 x 35.56mm. They are said to demonstrate significantly better convection cooled performance characteristics than other competing designs. Both modules comply with the UL60601-1 3rd edition medical safety standard, as well as the IEC60950/UL60950 safety specifications and EN55022 standard for conducted emissions. Protection features include over voltage, over current, and over temperature. A remote sense input and power OK signal are provided across the range. Optional droop current sharing allows multiple supplies to be operated in parallel. Author Laura Hopperton Comment on this article Websites http://www.murata.eu Companies Murata Power Solutions This material is protected by MA Business copyright See Terms and Conditions. One-off usage is permitted but bulk copying is not. For multiple copies contact the sales team. What you think about this article: Add your comments Name Email Comments Your comments/feedback may be edited prior to publishing. Not all entries will be published. Please view our Terms and Conditions before leaving a comment.