DDR-240B-24 MEAN WELL DC/DC Converters

QS10.121

PULS QS10.121 is a power supply unit designed for AC/DC conversion with a 50% power reserve. It features DIN rail mounting and operates within an ambient air temperature range of -25 to +70°C. The unit is equipped with a DC-OK relay contact output and offers a rated current of 15A at 12Vdc and 13.5A at 15Vdc, utilizing spring-clamp connections for connectivity. It supports a supply voltage range of 85Vac-264Vac for AC and 88Vdc-188Vdc for DC, with specific nominal values across a wide spectrum. The QS10.121, part of the Q-series, measures 60mm in width, 124mm in height, and 117mm in depth, housed in an aluminium casing. It is compatible with single-phase (1AC) or DC networks, delivering a rated power of 203W at 15V, 180W at 12V, and can momentarily supply up to 270W for 4 seconds. The output voltage is adjustable between 12Vdc and 15Vdc, featuring comprehensive protection functions including overvoltage and overload/short-circuit protection. The unit allows for series or parallel operation to increase output power and is designed to handle back-feeding loads without malfunctioning. Efficiency rates vary with input voltage, achieving up to 0.918 at 230Vac. It exhibits a peak current consumption of 10A, with a start-up delay between 340-800ms and a hold time of 32ms at nominal input conditions. Power dissipation stands at approximately 16.1W to 16.7W under full load conditions, and the electrical durability ranges significantly based on operating conditions, with up to 215000 hours at 25°C and 30A output with 1AC 230Vac input. The output stage capacitance is 7000µF, and ripple is maintained at 50mVpp across a 20Hz to 20MHz range.