SPX Transformer 175 MVA Utility Autotransformer from Mexico
SPX Transformer Solutions 175 MVA three-winding autotransformer with liquid dielectric cooling for utility load centers. Capacity exceeds 100,000 kVA with advanced cooling radiators. HTS 8504.23.00.80 designation for such large grid assets.
Duty Rate — Mexico → United States
15%
Rate breakdown
9903.82.1015%Except as provided for in headings 9903.82.12, 9903.82.17 and 9903.85.68, derivative aluminum and steel articles with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 15 percent, as provided for in subdivision (f) of U.S. note 16 to this subchapter
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• Three-winding configuration must be clearly documented to avoid single-winding classification
• Sound level test data required for urban substation installations
• FR3 fluid documentation for fire-point compliant installations