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93% efficient 480W DIN rail power supply has a high power density

TDK Corporation announced the introduction of the 480 W rated DRB480-24-1 DIN rail mount AC/DC power supply with a power density of 6 W per inch3.  Featuring a narrow width, the DRB480 is suited for enclosures and cabinets where space is at a premium. With an average efficiency of greater than 87%, the DRB480 meets ErP standards.

Housed in a robust metal enclosure, the DRB480 has a depth of 124 mm, a height of 125 mm and a width of 84 mm.  The power supply can operate from a wide range 90 – 264 Vac input allowing use globally.  The DRB480-24-1 has 24 V 20 A output and features a DC OK signal in addition to an LED indicator. The output can be adjusted from 24 – 26.4 V to compensate for series blocking diodes or FETs in redundant configurations.

The input to output isolation is 3,000 Vac, input to ground 1,500 Vac and the output to ground is 500 Vac. The DRB is convection cooled and is rated for operation in -20 to +70oC ambient temperatures (cold start at -30 oC), with linear derating above 50 oC to 62.5% load at 70 oC. Electrolytic capacitor temperatures have been carefully considered to ensure their life is greater than seven years in a 40°C ambient at 230 Vac input, with 75% load, operating 24 hours a day.

The unit is certified to IEC/EN/UL/CSA 60950-1, UL 508, and is CE marked for the Low Voltage, EMC and RoHS2 Directives.  It meets EN55011-B, EN55022-B, CISPR11-B, CISPR22-B, EN61204-3 Class A radiated and conducted emissions, and complies with both EN 61000-3-2 Class A harmonic currents and EN61000-4 immunity standards.

For more information about the full range of TDK-Lambda DRB480 series of DIN rail mount power supplies, visit the TDK-Lambda website at: www.uk.tdk-lambda.com/drb.

 

Power Supplies & Energy Storage

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