I found this ebay item and i was curious what you guys thought about the specs.
It looks nice and its only $50..
http://www.tracopower.com/products/tsl.htm
Traco Power TSL480-155PX Industrial Power Supply
Input: 93-264VAC Auto-ranging, 50/60Hz
Output: 48-55VDC Adjustable, 480 Watts, 10A
Screw-Terminal Input and Output
Universal Input Voltage
Output Voltage Adjustable
Short-to-Ground for Negative Voltage!
Metal Case (Aluminum), 9x5x5in
Easy Snap-On Mounting on DIN-Rails
-155 Model Is Custom -148 Model with Wider Operating Temperature Range
Low Harmonic Emissions on Input ('P' in the model#)
Extremely Low Output Ripple and Noise ('X' in the model#)
High Efficiency
Overload Protection
Parallel Operation Possible
CE Compliance to European EMC and Low Voltage Directive
Compliance to EN 61000-3-2 (PFC)
Conducted Emissions to EN 55011, Class B, and FCC Part 15 Level B
Noise Immunity to EN 50082-2
Safety Approvals to IEC 60950, EN 60950 (SELV) UL/cUL 1950, and UL 508
These power supplies are brand new, still in box. They were used both as bench power supplies on our manufacturing/test line, and as in-unit 48v power for a product that we manufactured for the telecom industry. Unfortunately, we are closing the business and are forced to sell our entire inventory of these $300+ units for pennies on the dollar.
edit: Added url to manufacturers spec