Puls CPS20 20 A one-phase DIN-rail power supply

The Puls CPS20-series power supply requires only 65 mm space on the DIN rail and delivers 24 V, 20 A or 48 V, 10 A. The power is available over a wide temperature range from -25 to +60°C. Additionally, there are power reserves of 20% included, which may even be used continuously at temperatures up to +45°C. For short-term peak loads with a maximum length of 15 ms, the units can deliver four times the nominal output current. This also helps to trip fuses on faulty output branches.

All units of the series are equipped with the HiccupPlus overload behaviour, a balanced power management, which in normal operation mode provides generous power reserves but effectively protects connected equipment and cables against damage in the event of failure.

Other features of these units include: 94% full-load efficiency, good partial-load efficiencies and low no-load losses, active PFC, high immunity to transients and power surges, low electromagnetic emission, electronic inrush current limitation, DC-OK signal for remote monitoring and a provision for equal current sharing when units are used in parallel. The robust mechanical design also allows use in harsh environments, where the unit is exposed to high shock and vibration loads. An optimised thermal design achieves a lifetime expectancy of over 60 000 h (calculated at full load and 40°C ambient temperature) and high MTBF figures.