QS20.241-A1

PULS QS20.241-A1 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 boasts ATEX approval and conformal coating for enhanced durability in harsh environments. The unit provides a rated current of 20A at 24Vdc and 17A at 28Vdc, with spring-clamp connections facilitating secure and reliable connectivity. It supports a wide supply voltage range from 85Vac to 264Vac across various nominal values and from 88Vdc to 188Vdc, ensuring flexibility across different power networks. The QS20.241-A1, part of the Q-series, measures 82mm in width, 124mm in height, and 127mm in depth, with an aluminium housing that contributes to its robustness. It delivers a rated power of 480W, with a short-term capacity of 720W for up to 4 seconds, and an adjustable output voltage between 24Vdc and 28Vdc. Protection features include output overvoltage protection and active input inrush current limiting, alongside capabilities for overload, short-circuit protection, and series or parallel operation for increased output power. The unit demonstrates high efficiency rates up to 93.9% depending on the input voltage and is designed for single-phase or DC networks. Electrical durability is rated up to 200,000 hours at 25°C with a 20A output, and the power supply unit includes a comprehensive protection function suite to ensure stable operation under various conditions.