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The CUI Inc. VMS-450C-12 is an open-frame AC-DC power supply designed for various applications, including ITE (Commercial) and Medical. It delivers a nominal output voltage of 12V and a maximum output current of 33.3A, providing up to 400W of power with forced air cooling.
This power supply operates with a wide input voltage range of 90-264 VAC or 127-370 VDC and features active Power Factor Correction (PFC), achieving a typical efficiency of 91% at 230 VAC. It includes essential protections such as over-voltage, over-current, and over-temperature protection.
The VMS-450C-12 has a compact 3" x 5" footprint and a chassis mount design. It operates within a temperature range of -40°C to 70°C with derating and offers features like remote sense, standby output, and power good signal. The unit is certified to 60601 safety standards and designed to meet 60335 & 61558 requirements.
The nominal output voltage is 12Vdc, adjustable from 11.4 to 12.6Vdc. The maximum output current is 33.3A.
The AC input range is 90 to 264Vac (47-63Hz). The DC input range is 127 to 370Vdc.
With 25 CFM forced air cooling, the maximum output power is 400W.
It is approved to UL/EN/IEC 62368-1 (ITE) and 60601-1 (Medical) standards, with CE, cURus, and UKCA marks.
The operating temperature range is -40°C to +70°C (with derating).
Yes, it features active power factor correction with a typical power factor of 0.98 at 115Vac and 0.95 at 230Vac.
It includes over-voltage protection (15.6Vdc), over-current protection (105% minimum), continuous short-circuit protection with auto recovery, and over-temperature protection with auto recovery.