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The CUI Inc. VMS-300A-48 is an AC-DC power supply designed for demanding applications, particularly in the medical field, with 2x MOPP applications and 60601-1 (4th edition) safety approvals. This open-frame unit provides a continuous 300W of power with forced air cooling, or 200W with convection cooling, and delivers a stable 48Vdc output.
Key electrical specifications include a wide universal input voltage range of 90-264 Vac and an efficiency of up to 94% at full load. It incorporates power factor correction meeting EN 61000-3-2 standards and offers features such as adjustable output, remote voltage sense, and on/off control. The power supply also includes a 5Vdc auxiliary standby output and a fan output.
With an industry-standard 3" x 5" footprint, the VMS-300A-48 is designed for chassis mounting. It operates across a wide temperature range of -40°C to 80°C with derating and includes comprehensive protections against over voltage, over current, over temperature, and short circuits. The unit meets various compliance standards including 55011 Class B, 60601-1, 61000-3-2, and 61000-3-3.
The VMS-300A-48 provides a single output of 48 Vdc.
The input voltage range is 90-264 Vac.
The operating temperature range is -40°C to 80°C with derating.
The converter is packaged in an open frame configuration.
Typical efficiency is 94% at full load, 25°C, 230 Vac input.
The dimensions are 127.0mm (5.00") length, 76.2mm (3.00") width, and 35.1mm (1.38") height.
Yes, it meets IEC 60601-1 medical safety standard.