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Baseplate-cooled AC-DC power supplies deliver 355W at 93.5% efficiency

Baseplate-cooled AC-DC power supplies deliver 355W at 93.5% efficiency

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By eeNews Europe



The space-saving power supplies are housed in two optional case styles: a compact open frame version and an enclosed version. Featuring typical efficiency above 93%, the power supplies are designed for applications where forced-air cooling is not preferred due to audible noise or space limitations. The VBM series is also suited for sealed-box applications where heat must be conducted through the chassis, a common requirement in commercial and industrial equipment that’s designed for outdoor and harsh environments.

CUI’s VBM-360 power supplies have a universal 90 to 264 Vac input for global operation and are available with single outputs of 12, 24 and 48 Vdc. Using conduction-cooling via an integrated baseplate, open frame models are rated for operation at 80% from -20°C to 40°C ambient, derating to 40% load at 70°C, while enclosed versions are rated for operation at 100% load from -20°C to 40°C, also derating to 40% load at 70°C. For applications that can incorporate air flow of 10 CFM, the open frame units will operate at 100% load from -20°C to 50°C, while enclosed versions will operate at 100% load from -20°C to 60°C.

The VBM-360 series features include active power factor correction (PFC) and protections for over voltage, over current, short circuit, and over temperature. Connections for remote on/off control, remote sense, 5 V standby, and a 12 V fan output are also included. All models carry UL/cUL and TUV 60950-1 safety certifications for ITE, commercial and industrial equipment, and are compliant with the EN 55022 Class B EMI standard.

Visit CUI at www.cui.com

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