Measuring 12” x 5” x 1.61”, the RFE1000 series single-output ac/dc power supplies provide up to 1 kW of output power with an efficiency up to 88%. Their outputs, 24, 32, or 48 Vdc, are adjustable to +20%/-10% and up to eight units can be connected in parallel to form an N+1 redundant power system with built-in ORing diodes. Other features include variable-speed cooling fans, an operating temperature range from 0°C to +70°C, over-current and over-temperature protection, opto-isolated signals for DC-OK, AC-fail and over-temperature warning, a LED indicator for DC-OK, remote On/Off control, single-wire current sharing, and an auxiliary 12V/0.25A output. Pricing is $295 each/1,000. TDK-LAMBDA, San Diego, CA. (800) 526-2324.