Input Range

Percent deviation above and below the nominal (or rated) input voltage that can be corrected to within the specified output regulation. In other words, this is a measure of how widely the input voltage can vary from what it is supposed to be. The larger the "spread", the better (e.g. +10% to -25% provides a wider input voltage window than ±10%). For a nominal 480v input voltage, an input range of +10% to -25% equals 528v to 360v.