Where can I find a replacement of a Sun Power Supply 300-1501? Is there a replacement?

SOURCE: how to get 48V output. I do not have Sun 480

One place offer DC power 6V to 600v http://www.us.tdk-lambda.com/hp/default_lvgoog.asp?gclid=COGvyYGd96UCFcjsKgodqA0ZpA

2nd place http://www.matsusada.com/dc/ You may understand offerings better than I.

Most promising based on your need http://www.powersupplydepot.com/pssearch.asp?searchtype1=1&search1=48&action=Search

Hope you find what you need.