AC/DC medical power supplies deliver up to 94% efficiency

19th May 2017
Source: CUI Inc
Posted By : Alice Matthews
AC/DC medical power supplies deliver up to 94% efficiency

A compact 300W series has been added to CUI’s Power Group's line of internal AC/DC medical power supplies. The VMS‑300A series, available in industry standard 3x5” open frame and metal enclosed packages, delivers efficiencies up to 94% and high power densities up to 14.5W/in3. Meeting EN 60601-1 edition 3.1 safety standards and 4th edition EMC requirements, these single output, medical power supplies are designed for energy-conscious, 2 x MOPP (Means of Patient Protection) hospital, home healthcare, and dental applications.

The open frame VMS‑300A and metal enclosed VMS‑300A‑CNF series carry UL/cUL and TUV 60601-1 safety marks while meeting EN 55022 Class B and FCC Class B limits for radiated emissions. The series features a wide universal input voltage range of 90-264VAC with output voltage options of 12, 24, 36, and 48VDC. All models also offer 4,000VAC input-to-output isolation and 1,500VAC output-to-ground isolation. Additional features include power factor correction, remote voltage sense, a 5V standby, and remote on/off control as well as over voltage, over current, over temperature, and short circuit protections.

The open frame version of the VMS‑300A series measures 76.2x127x35.1mm (3.00x5.00x1.38") and provides an operating temperature range at full load from -40 to 50°C with forced air cooling, derating to 60% load at 70°C. Dimensions for the metal enclosed package measure slightly larger at 88x136x40.4mm (3.46x5.35x1.59"), while carrying an operating temperature range at full load from -40 to 60°C with forced air cooling, derating to 60% load at 80°C.

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