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The CUI Inc. VMS-550C-27-CFS is a versatile AC-DC power supply designed for various applications. It offers a nominal output voltage of 27V and can deliver up to 551W of power with forced air cooling, or 320W under natural convection.
This power supply operates across a wide AC input voltage range of 90-264 Vac and also supports DC input from 127-370 Vdc. Key electrical features include active Power Factor Correction (PFC), a typical efficiency of 93.5% at 230 Vac, and protections such as over-voltage, over-current, and over-temperature.
The unit is built with an enclosed chassis mount design, measuring 160.0mm x 86.0mm x 43.0mm. It operates within a temperature range of -40°C to 70°C with derating. The VMS-550C-27-CFS is certified to 60601 safety standards and designed to meet 60335 and 61558 requirements, making it suitable for ITE (Commercial) and Medical applications.
Additional features include a 5V standby output, remote sense capability, and a power good signal. The power supply also incorporates protections like over-voltage, over-current, and over-temperature with auto-recovery.
The nominal output voltage is 27 Vdc, with an adjustable range of 25.65 to 28.35 Vdc.
The maximum output power is 550.8 W with forced air cooling and 320 W under natural convection.
The AC input voltage range is 90 to 264 Vac, and the DC input range is 127 to 370 Vdc.
The operating temperature range is -40°C to 70°C, with derating.
It is certified to the 60601 safety standard and designed to meet 60335 and 61558 safety requirements.
This power supply uses a chassis mount.