Siemens 25MVA Oil-Immersed Distribution Transformer
A 25MVA three-phase oil-immersed transformer for industrial power distribution, featuring ONAN cooling. Classified under HTS 8504.23.0041 due to its 25,000 kVA rating and liquid dielectric insulation within the specified range.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If power handling capacity ≤ 1,000 kVA
Smaller power transformers fall under lower capacity subheadings.
If uses gas or dry-type dielectric instead of liquid
Different dielectric types change the primary heading classification.
If capacity exceeds 59,999 kVA
Upper capacity limit shifts to next statistical breakout.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Include detailed nameplate data (kVA, voltage ratings, oil type) in entry documentation for verification
• Ensure transformer meets NEMA standards; non-compliant units may face additional testing requirements
• Verify no asbestos components in gaskets or insulation; provide affidavits if manufactured pre-1980s
Related Products under HTS 8504.23.00.41
ABB TX Panorama 40MVA Liquid-Filled Power Transformer
This 40MVA liquid dielectric transformer is designed for substation use in electrical grids, stepping down high voltage for distribution. It falls under HTS 8504.23.0041 because it has a power handling capacity of 40,000 kVA, within the 10,001-59,999 kVA range, and uses insulating oil as the dielectric.
GE Prolec 50MVA Substation Step-Down Transformer
Heavy-duty 50MVA liquid-filled transformer for utility substations, converting 230kV to 69kV distribution levels. Meets HTS 8504.23.0041 criteria with 50,000 kVA capacity and mineral oil dielectric.
Hyundai 35MVA Power Transformer with ONAN Cooling
35MVA oil-natural air-natural (ONAN) cooled transformer for regional power grids. Falls under HTS 8504.23.0041 for its liquid dielectric design and 35,000 kVA capacity range.
Toshiba 45MVA Mineral Oil Filled Grid Transformer
45MVA substation transformer using mineral oil dielectric for 138/34.5kV applications. Classified in HTS 8504.23.0041 due to power handling of 45,000 kVA and liquid insulation.
Hitachi 30MVA Three-Phase Utility Transformer
30MVA three-phase liquid dielectric transformer for utility step-up applications. HTS 8504.23.0041 applies for 30,000 kVA capacity with oil-immersed construction.
Schneider Electric 55MVA High-Voltage Transformer
55MVA liquid-cooled high-voltage transformer for transmission substations. Classified under HTS 8504.23.0041 for 55,000 kVA rating and insulating oil dielectric.