XP Power today announced the DSA series of three ultra slim DIN rail industrial AC-DC power supplies and the complementary DSA-DP20 ORing redundancy module. The highly efficient DSA series includes the 150-Watt DSA150, the 240-Watt DSA240 and the 480-Watt DSA480. With a single output of either 24- or 48-Vdc the range is aimed at industrial type applications, such as process control and building automation, where the space used by the power supply on the DIN rail needs to be minimized. A voltage trim function provides adjustment of the stated nominal output by +/-5%.
These convection cooled units are narrower than standard DIN rail mount supplies and, with the DSA150 measuring 3.92 x 4.92 x 2.18”, the DSA240 4.64 x 4.93 x 2.59” and the DSA480 4.85 x 4.91 x 3.39”, the modules take up minimal space on the DIN rail and provide more power in the available area. The modules high efficiency rating contribute to using less power resulting in a product that generates less heat, ensuring easier thermal management for the end user. Typical efficiencies are, for the DSA150 87%, the DSA240 92% and the DSA480 94%.
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The series also features a peak load capability that allows 150% of rated output for up to 3 seconds. This is designed for high start-up current applications, such as starting a motor, without having to specify a more expensive power supply with a higher power rating just to meet such occasional load conditions.
The DSA-DPA20 diode ORing module can be used with the DSA series to provide redundancy for 24-Vdc applications up to 20 Amps. Measuring 3.92 x 4.92 x 2.18” in a DIN rail mount package, the module can be connected to two power supplies for 1+1 redundancy or with multiple power supplies and DSA-DPA20 modules for N+1 redundancy. The module has volt free relay contact signals and a visual LED output and failure indicator.
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The DSA series meets the international safety standards UL508, EN60950, IEC60950 in addition to complying with EN55022 Class B specifications for conducted and radiated emissions. The DSA series is priced from $81.90 for 500 pcs orders and is available from Newark, Digi-Key, or direct from XP Power and come with a 3-year warranty.
source: http://www.powerpulse.net/story.php?storyID=32711
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