Siemens 9EP3323 Metal Oxide Surge Arrester from Japan
This metal oxide varistor (MOV) based surge arrester is designed for high-voltage overhead power transmission lines exceeding 1,000V. It protects transformers and switchgear from lightning-induced overvoltages by clamping surge voltages. Classified under 8535.40.00.00 as it functions specifically as a lightning arrester for high-voltage applications.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Verify arrester voltage rating exceeds 1,000V with test certificates to confirm HTS 8535.40 classification
• Include manufacturer specs showing MOV technology and energy absorption capacity (kJ/kV)
• Avoid misclassification as low-voltage suppressors; provide proof of high-voltage design to prevent reclassification