ABB SF6 Gas-Insulated Circuit Breaker 420kV from China
High-voltage SF6 gas-insulated automatic circuit breaker designed for 420kV transmission lines to protect against overcurrents and short circuits. It falls under HTS 8535.29.0020 because it is an automatic circuit breaker rated for circuits exceeding 345kV. Used in utility-scale power grids for reliable switching and fault interruption.
Duty Rate — China → United States
37%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
9903.88.0125%Except as provided in headings 9903.88.05, 9903.88.06, 9903.88.07, 9903.88.08, 9903.88.10, 9903.88.11, 9903.88.14, 9903.88.19, 9903.88.50, 9903.88.52, 9903.88.58, 9903.88.60, 9903.88.62, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(b) [to this subchapter]
Import Tips
• Obtain IEEE/ANSI certifications and dielectric test reports; ensure SF6 gas handling complies with EPA regulations; declare exact voltage rating to avoid misclassification under lower kV subheadings