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The VMS-275-58-1 is an AC/DC converter from CUI Inc. designed to deliver a regulated 58 Vdc output. It is part of the VMS-275 series and offers a maximum output power of 275 W with forced air cooling (13 CFM) and 160 W under natural convection. This converter accepts a universal input voltage range of 80 to 264 Vac at 47 to 63 Hz.
With a typical efficiency of 92%, the converter minimizes power loss. It features line and load regulation of ±0.5% and ±1% respectively, and a ripple and noise of 580 mVp-p. The unit includes comprehensive protections: over voltage (110-140% hiccup auto recovery), over current (110% min hiccup auto recovery), and short circuit (auto recovery). Isolation voltage between input and output is 4200 VAC.
The output voltage is adjustable via a built-in trim pot by ±3%. A fan output of 12 Vdc / 500 mA is provided for external cooling. The transient response is 4% maximum excursion for a 25% step load change. The switching frequency ranges from 50 to 300 kHz. The unit has a no load power consumption of less than 0.5 W, meeting standby power requirements.
58 Vdc.
275 W with forced air cooling (13 CFM) and 160 W with natural convection.
92% typical.
Over voltage protection (110-140% hiccup auto recovery), over current protection (110% min hiccup auto recovery), and short circuit protection (auto recovery).
4200 VAC.
Yes, via a built-in trim pot by ±3%.
Yes, a 12 Vdc / 500 mA fan output is available.