200W, 450W HRPG Power Supplies MEAN WELL 200W, 450W HRPG Series Power Supplies are single-output power supplies with built-in active PFC function (PF>,0.95) and universal input at full range (85VDC to 264VAC, 120VDC to 370VDC). With high efficiency >,89%, both HRPG series can withstand a 300VAC surge input for 5 seconds and include protections for short circuit, overload, over-voltage, and over-temperature, as well as a built-in constant current limiting circuit. The MEAN WELL HRPG-200 Series features a 1U low profile (38mm) and the HRPG-450 Series features a built-in cooling Fan ON-OFF control and DC OK signal.