150 kVA Oil-Filled Substation Transformer
Three-phase oil-immersed transformer for pad-mounted substations, 12.47 kV to 480V at 150 kVA capacity. HTS 8504.33.00 classification based on power handling specs within the 16-500 kVA threshold.
Import Duty Rates by Country of Origin
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If power handling over 500 kVA
Larger substation transformers exceed the capacity limit of this subheading.
If shipped as core-and-coil assembly
Incomplete transformers without tank classify as parts.
If with integral rectifier for DC output
Power supply rectifiers use static converter classification.
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
• DOE Phase I efficiency standards documentation mandatory since 2016 for liquid-immersed units
• Provide pressure relief device and liquid level gauge certifications for safety compliance
• Declare total weight including oil for proper freight and customs valuation
Related Products under HTS 8504.33.00
30 kVA Pad-Mounted Distribution Transformer
This oil-immersed pad-mounted transformer is designed for outdoor utility distribution, stepping down medium voltage to 240/480V for residential and commercial use. It falls under HTS 8504.33.00 due to its 30 kVA power handling capacity, which exceeds 16 kVA but does not exceed 500 kVA, classifying it as a power transformer without additional conversion functions.
50 kVA Three-Phase Pole-Mounted Transformer
A three-phase pole-mounted transformer for overhead distribution lines, converting 13.8 kV to 208Y/120V service voltage. Classified under HTS 8504.33.00 for its 50 kVA capacity within the 16-500 kVA range, typical for medium-sized commercial power delivery.
100 kVA Dry-Type Cast Coil Transformer
Epoxy cast coil dry-type transformer for indoor industrial applications, handling 480V delta to 208Y/120V with 100 kVA capacity. HTS 8504.33.00 applies as a power transformer in the specified 16-500 kVA range, without static conversion features.
25 kVA Single-Phase Farm Duty Transformer
Single-phase transformer designed for rural agricultural service drops, typically 7.2 kV to 240/120V at 25 kVA. Falls under HTS 8504.33.00 for medium power handling between 16-500 kVA, standard for farm distribution.
40 kVA Ventilation-Enclosed Transformer
Dry-type transformer with ventilated NEMA 2 enclosure for commercial HVAC applications, 600V to 208V at 40 kVA. Classified in HTS 8504.33.00 for its medium power rating suitable for building electrical systems.
200 kVA Industrial Buck-Boost Transformer
Large buck-boost transformer for precise voltage correction in heavy industrial plants, handling 200 kVA loads. HTS 8504.33.00 due to power capacity fitting 16-500 kVA range, primarily functioning as transformer.