3F3Y030FCD16 SER H, SIEMENS LOW VOLTAGE DISTRIBUTION TRANSFORMER DRY TYPE VENTILATED, 3 PHASE, 30kVA, 480V PRIMARY VOLTAGE, 208Y/120V Secondary Voltage, Six Taps 2.5% (2 FCAN, 4 FCBN), 115C TEMP RISE, COPPER WINDINGS, meets DOE 2016 energyefficiency standards, NEMA 3R, SERIES H.