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The CUI Inc. VMS-450B-19-CF is an AC/DC converter designed for a wide range of power applications. It accepts a universal input voltage range of 90-264 Vac at 47-63 Hz, delivering a single regulated 19 Vdc output at up to 23.7 A, for a total output power of 450 W.
This converter achieves a typical efficiency of 91%, reducing power loss and thermal stress. It includes over voltage protection (150% shutdown) and over current protection (130% auto-recovery), ensuring reliable operation under fault conditions. The input-to-output isolation is rated at 4000 Vac, providing safety isolation.
The VMS-450B-19-CF also features a 12 Vdc / 600 mA fan drive output for external cooling, and a 5 Vdc / 1 A auxiliary output. It operates over a temperature range of -20°C to 70°C with derating. No physical dimensions or mounting specifications are provided, so designers should refer to the manufacturer for mechanical details.
The output voltage is 19 Vdc nominal.
The input voltage range is 90-264 Vac.
The operating temperature range is -20°C to 70°C with derating.
Over voltage protection shuts down at 150% of rated output. Over current protection automatically recovers at 130% of rated current.
The typical efficiency is 91%.
Yes, it provides 12 Vdc at up to 600 mA for an external fan.
The input-to-output isolation is rated at 4000 Vac.