500-W supply targets demanding architectural LED lighting

The LU500 open frame 500-W ac/dc power supply targets demanding LED and architectural lighting that require a small form factor, high efficiency, and wide input range. The unit features a universal ac-input from 90 to 305 Vac and dc-output range from 12 to 48 Vdc. It measures 4 x 7.25 x 2.2-in. and fits comfortably into a 2U chassis, and provides up to 500 W with moving air.

Meeting IEC61000-3-2 class C with a power factor >0.9 and EMI compliance to CISPR 15 or EN55015 for lighting, the power supply features active current sharing for parallel operation to deliver up to 1,000 W. It provides an average efficiency of over 90% and has over-temperature sensing circuits that will shut down the power supply in case of overheating. The supplies feature >500 kh MTBF while operating at 25°C.