Siemens 80 MVA Substation Step-Up Transformer

Siemens 80 MVA liquid-filled power transformer for substation step-up applications, handling 80,000 kVA with mineral oil insulation. Classified under HTS 8504.23.0045 due to its power capacity between 59,999 and 100,000 kVA and oil-immersed design. Features on-load tap changers for voltage regulation.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China1.6%+35.0%36.6%
🇲🇽Mexico1.6%+10.0%11.6%
🇨🇦Canada1.6%+10.0%11.6%
🇩🇪Germany1.6%+10.0%11.6%
🇯🇵Japan1.6%+10.0%11.6%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

8504.23.00Same rate: 36.6%

If rated above 100,000 kVA

Exceeding the upper kVA limit shifts classification to the higher capacity subheading.

8504.33.00Same rate: 36.6%

If constructed as dry-type

Absence of liquid dielectric changes classification to air-cooled transformers.

8504.90.75Lower: 35% vs 36.6%

If imported as assembled sections or cores

Parts or incomplete assemblies of transformers fall under parts headings rather than complete units.

Not sure which classification is right?

Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.

Import Tips & Compliance

Provide detailed technical datasheets showing kVA rating, BIL (basic impulse level), and oil type for customs valuation

Comply with EPA regulations for PCB-free dielectric fluid certification before import

Related Products under HTS 8504.23.00.45

ABB TX 75 MVA Oil-Immersed Power Transformer

This liquid dielectric transformer from ABB has a power handling capacity of 75,000 kVA, used for stepping up voltage in utility substations. It falls under HTS 8504.23.0045 because it exceeds 59,999 kVA but not 100,000 kVA and uses oil as the dielectric medium. Designed for high-voltage transmission networks with robust cooling systems.

Hitachi 90 MVA High-Voltage Power Transformer

Hitachi Energy 90 MVA three-phase oil-immersed transformer for 230 kV transmission lines, rated at 90,000 kVA. Fits HTS 8504.23.0045 as liquid dielectric with capacity 59,999-100,000 kVA. Equipped with advanced cooling fans and bushings.

Schneider Electric 85 MVA Power Transformer

Schneider 85 MVA oil-immersed autotransformer for industrial power distribution at 85,000 kVA. Falls under HTS 8504.23.0045 due to liquid dielectric and 60-100 MVA capacity range. Optimized for harmonic reduction.

GE 65 MVA Oil-Filled Distribution Transformer

General Electric 65 MVA pad-mounted oil-filled transformer for medium-voltage distribution, with 65,000 kVA capacity. Meets HTS 8504.23.0045 criteria as a liquid dielectric unit in the 60-100 MVA range. Includes pressure relief devices and temperature monitoring.

Toshiba 70 MVA Utility Step-Down Transformer

Toshiba 70 MVA liquid-cooled step-down transformer for utility substations, handling 70,000 kVA load. Classified in HTS 8504.23.0045 for oil dielectric transformers in 60-100 MVA range. Features automatic gas relay protection.

Hyundai 95 MVA Oil-Immersed Grid Transformer

Hyundai Electric 95 MVA power transformer with silicone-based dielectric oil for smart grid applications, 95,000 kVA capacity. Meets HTS 8504.23.0045 as liquid dielectric unit within specified power range. Includes digital monitoring interface.