SE-450 series power supply

April 2009 Electrical Power & Protection

Mean Well has announced the introduction of a 450 W general purpose AC/DC enclosed type single output switching power supply for the popular mid-wattage applications. Exclusion of power factor correction from the design maintains the cost at a lower level in order to fulfil the economic requirements for areas where PFC is not required, such as US, China, Taiwan, and south-east Asia. The AC input range is selectable between 115/230 V via the built-in switch.

Using high frequency switching technology, SE-450 achieves efficiencies up to 88% at high power density; the high reliability DC fan allows operation in ambient temperatures up to it 60°C. On the AC input side, SE-450 has built-in inrush current limiting circuitry, while at the DC output a remote sense function compensates the voltage drop associated with long wiring. Protection functions include short-circuit, overload, over-voltage, and over-temperature and safety approval per UL and UCL is also available.

Suitable application includes general electronic application, factory automation and the moving sign industry.

For more information contact Ettienne van der Westhuyzen, Current Automation, +27 (0)11 462 4253, [email protected], www.rectifier.co.za

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