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The CUI Inc. VMS-550C-15-CNF is an AC/DC converter delivering a nominal 15Vdc output with a maximum current of 33.3A. It accepts a universal AC input of 90-264Vac or a DC input of 127-370Vdc, with a frequency range of 47-63Hz. The converter achieves a typical efficiency of 92% at 230Vac and includes active power factor correction (0.98 typical at 115Vac full load).
Output power is rated at 320W under natural convection and up to 550W with forced airflow; the maximum output power with 25 CFM forced air is 499.5W. The unit features comprehensive protection including over voltage (latching at 19.5Vdc), over current (hiccup auto recovery at 105%), short circuit (continuous hiccup auto recovery), and over temperature (auto recovery).
Operating temperature range is -40°C to 70°C. The converter provides a hold-up time of 10ms minimum at both 115Vac and 230Vac. Line regulation is ±0.5% and load regulation is ±1% from 0 to 100% load. Ripple and noise is 200mVp-p maximum under specified test conditions.
The nominal output voltage is 15Vdc, with an adjustable range of 14.25V to 15.75Vdc.
The maximum output current is 33.3A.
It accepts 90-264Vac AC input or 127-370Vdc DC input.
The operating temperature range is -40°C to 70°C.
Over voltage protection (latching at 19.5Vdc), over current protection (hiccup auto recovery at 105%), short circuit protection (continuous hiccup auto recovery), and over temperature protection (auto recovery).
Typical efficiency is 92% at 230Vac.