QS40.244

PULS QS40.244 is a power supply unit designed for DIN rail mounting, featuring AC/DC conversion with a 50% power reserve. It operates within an ambient air temperature range of -25 to +70°C and offers a design that includes a DC-OK relay contact output. The unit provides a rated current of 40A at 24Vdc and 34.3A at 28Vdc, with screw-clamp connections for secure installation. It supports a supply voltage range of 180Vac to 264Vac across various nominal values and frequencies, with specific turn-ON and shutdown voltages. As part of the Q-series, it measures 125mm in width, 124mm in height, and 127mm in depth, housed in an aluminium casing. This single-phase unit delivers a rated power of 960W, with a short-term capacity of 1440W for up to 4 seconds, and an adjustable output voltage between 24Vdc and 28Vdc. It features comprehensive protection functions, including output overvoltage protection and overload/short-circuit current management, and is capable of series or parallel operation for increased output power. The QS40.244 maintains efficiency at 0.946 with a 230Vac input and incorporates a time delay for start-up and rise, alongside a hold time of 30ms at 230Vac input. Power dissipation is noted at 54.8W under full output load with a 230Vac input. Its electrical durability spans up to 311,000 hours at 25°C with a 20A output, and it exhibits a ripple of 100mVpp across a 20Hz to 20MHz range with a 50Ω load. The output stage capacitance is 10200µF, ensuring stable performance across its operational lifespan.