General Electric 9T03B5214 75KVA 3PH Transformer

General Electric 9T03B5214 is a 75 kVA, 3-phase transformer with a 480V primary and a 480Y/277V secondary. This GE unit steps a 480V distribution feed to 277V line-to-neutral through a 480Y/277V low-voltage configuration, making it suitable for commercial and light-industrial electrical distributions that require 277V lighting circuits and 480V equipment on the same transformer. The 75 kVA rating supports substantial load while maintaining voltage stability under typical operating conditions. Identified by part number 9T03B5214, this transformer belongs to GE's 9T0 series, designed for reliable distribution service in facilities that use a 480V primary supply. Common applications include stepping down from 480V to 277V in facilities with 480V distribution, allowing safe operation of lighting and auxiliary loads alongside 480V equipment.