QS40.481

PULS QS40.481 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 is equipped with ATEX approval, a DC-OK relay contact output, and screw-clamp connections. This unit supports a supply voltage range of 85Vac-264Vac across various nominal voltages and frequencies, with specific turn-ON and shutdown voltages. It belongs to the Q-series and is housed in an aluminium casing with dimensions of W125mm x H124mm x D127mm. The QS40.481 is designed for single-phase networks, offering a rated current of 20A at 48Vdc and 17.8A at 54Vdc, with a derating power of 24W at temperatures ranging from +60°C to +70°C. Its rated power is 960W, with a short-term capacity of 1440W for up to 4 seconds, and an adjustable output voltage between 48Vdc and 54Vdc. Protection features include output overvoltage protection and overload/short-circuit protection, with capabilities for series or parallel operation to increase output power. The unit demonstrates high efficiency rates across various input voltages and has specific inrush current, time delay, hold time, power dissipation/losses, and electrical durability metrics. It also features a ripple of 150mVpp and an output stage capacitance of 3700µF.