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The VMS-450C-15 is a single output AC-DC converter from CUI Inc. designed for 15Vdc applications. It accepts a universal AC input voltage from 90 to 264 VAC or a DC input from 127 to 370 VDC, with a frequency range of 47-63 Hz.
With a maximum output current of 26.7A, the converter provides 450W of output power under forced air cooling (25 CFM) and 250W under natural convection. It achieves a typical efficiency of 92% at 230 VAC and features power factor correction (0.98 typical at 115 VAC, 0.95 at 230 VAC). Output ripple and noise is limited to 200 mVp-p at full load.
The converter includes a PS-ON signal for remote on/off control, reducing no load power consumption to 0.5W max when the output is disabled. Line and load regulation are within ±0.5% and ±1% respectively, with an initial set point accuracy of ±1%.
The input voltage range is 90-264 VAC or 127-370 VDC.
The output voltage is 15 Vdc nominal (adjustable 14.25-15.75 Vdc) with a maximum output current of 26.7 A.
Typical efficiency is 92% at 230 VAC.
Power factor is 0.98 typical at 115 VAC full load and 0.95 at 230 VAC full load.
Ripple and noise is 200 mVp-p maximum at full load with specified output capacitors.
No load power consumption is 0.5 W maximum at 230 VAC with PS-ON signal held low.
For 450W output, forced air cooling of 25 CFM is required. Under natural convection, output is limited to 250W.