HS Code Subheading

Electrical transformers; liquid dielectric, having a power handling capacity exceeding 10,000kVA

8504.23 Subheading
Section XVI — Machinery and mechanical appliances; electrical equipment; parts thereof; sound recorders and reproducers, television image and sound recorders and reproducers, and parts and accessories of such articles

About HS Code 850423

This category encompasses large, high-power liquid dielectric transformers, which are the backbone of national and regional electricity grids. With power handling capacities exceeding 10,000kVA, these colossal units are indispensable for power generation plants, major transmission substations, and heavy industrial complexes, enabling the efficient and reliable long-distance transmission of electricity. Their trade is highly specialized, driven by large-scale infrastructure projects and the expansion or modernization of national power grids. Key importers are countries undertaking significant energy infrastructure development, such as emerging economies in Asia and Africa, alongside developed nations upgrading their aging grids, including the USA, China, and India. Exporters are a select group of countries with highly advanced heavy electrical manufacturing capabilities, such as China, Germany, Japan, and South Korea. The market demands extreme reliability, high efficiency, and compliance with rigorous international standards for safety and performance.

Products Under This Code

Large power transformers, Generator step-up transformers (GSU), Transmission transformers, Ultra-high voltage (UHV) transformers, Extra-high voltage (EHV) transformers, Autotransformers for grid interconnection, HVDC converter transformers

Real World Examples

Siemens large power transformers, ABB EHV/UHV transformers, GE Grid Solutions power transformers, Mitsubishi Electric large transformers, Hyundai Electric ultra-high voltage transformers

Common Misclassification

These are distinct from smaller liquid dielectric transformers (8504.21, 8504.22) solely based on their immense kVA capacity. Confusion with dry-type transformers (8504.3x) is less common due to the scale and application differences.

Products Classified Under 8504.23

Power transformer

Related Codes

8504.10 Discharge lamps or tubes; ballasts therefor 8504.21 Electrical transformers; liquid dielectric, having a power handling capacity not exceeding 650kVA 8504.22 Electrical transformers; liquid dielectric, having a power handling capacity exceeding 650kVA but not exceeding 10,000kVA 8504.31 Electrical transformers; n.e.c. in item no. 8504.2, having a power handling capacity not exceeding 1kVA 8504.32 Transformers; n.e.c. in item no. 8504.2, having a power handling capacity exceeding 1kVA but not exceeding 16kVA 8504.33 Transformers; n.e.c. in item no. 8504.2, having a power handling capacity exceeding 16kVA but not exceeding 500kVA 8504.34 Transformers; n.e.c. in item no. 8504.2, having a power handling capacity exceeding 500kVA 8504.40 Electrical static converters 8504.50 Electrical inductors; n.e.c. in heading no. 8504 8504.90 Electrical transformers, static converters and inductors; parts thereof

Industry

This code belongs to the Electronics & Electrical Equipment industry.

Trade Overview

Major importers include the USA, China, and India, while China, Germany, and South Korea are leading exporters.

Frequently Asked Questions

What is HS code 850423?

HS code 850423 covers: Electrical transformers; liquid dielectric, having a power handling capacity exceeding 10,000kVA. This category encompasses large, high-power liquid dielectric transformers, which are the backbone of national and regional electricity grids. With power handling capacities exceeding 10,000kVA, these colossal units are indispensable for power generation plants, major transmission substations, and heavy industrial complexes, enabling the efficient and reliable long-distance transmission of electricity. Their trade is highly specialized, driven by large-scale infrastructure projects and the expansion or modernization of national power grids. Key importers are countries undertaking significant energy infrastructure development, such as emerging economies in Asia and Africa, alongside developed nations upgrading their aging grids, including the USA, China, and India. Exporters are a select group of countries with highly advanced heavy electrical manufacturing capabilities, such as China, Germany, Japan, and South Korea. The market demands extreme reliability, high efficiency, and compliance with rigorous international standards for safety and performance.

What products fall under HS code 850423?

Large power transformers, Generator step-up transformers (GSU), Transmission transformers, Ultra-high voltage (UHV) transformers, Extra-high voltage (EHV) transformers, Autotransformers for grid interconnection, HVDC converter transformers

What are common misclassifications for HS code 850423?

These are distinct from smaller liquid dielectric transformers (8504.21, 8504.22) solely based on their immense kVA capacity. Confusion with dry-type transformers (8504.3x) is less common due to the scale and application differences.

How is HS code 850423 structured?

HS code 850423 is a 6-digit subheading under the Harmonized System. The first 2 digits (85) identify the chapter, digits 3-4 (04) identify the heading, and digits 5-6 (23) specify the subheading. This code is standardized globally by the World Customs Organization.