Commercial Three-Phase Transformer 300 kVA
300 kVA three-phase liquid dielectric transformer for light industrial use, mineral oil filled. Provides 480V delta to 208Y/120V wye output. Fits 8504.21.00 criteria perfectly.
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 dry-type industrial >1 kVA
Non-liquid cooled versions classify differently.
If with rectifier functionality
Converter-integrated units go to static converter subheadings.
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
• IEEE C57.12 compliance mandatory; include test data sheets
• Specify if FR3 fluid used—still liquid dielectric but eco-friendly variant
Related Products under HTS 8504.21.00
Conventional Pole Transformer 37.5 kVA
37.5 kVA conventional mineral oil pole transformer, most common utility size. 7200/12470V primary. Standard 8504.21.00 product.
Pad-Mounted Single-Phase Transformer 25 kVA
A liquid dielectric transformer designed for underground distribution systems, rated at 25 kVA for residential power delivery. It uses mineral oil as the dielectric and steps down medium voltage to 120/240V single-phase. Classified under 8504.21.00 due to its power handling capacity not exceeding 650 kVA.
Pole-Mounted Distribution Transformer 50 kVA
Single-phase pole-mount transformer with mineral oil dielectric for utility pole installation, rated 50 kVA. Converts 7.2 kV to 120/240V for rural electrification. Fits 8504.21.00 as liquid dielectric unit under 650 kVA.
Residential Oil-Filled Transformer 100 kVA
Single-phase 100 kVA transformer with mineral oil immersion for suburban power distribution. Features dead-front design for safety. HTS 8504.21.00 applies to its sub-650 kVA liquid dielectric specs.
Distribution Class Transformer 45 kVA
Conventional mineral oil filled 45 kVA single-phase distribution transformer for pole mounting. Standard utility-grade with lightning arrestors. HTS 8504.21.00 for liquid type under capacity limit.
Self-Protected Transformer 25 kVA
25 kVA single-phase pole transformer with integrated bay-o-net fusing and mineral oil dielectric. Self-protected design reduces external protection needs. Classifies in 8504.21.00.