Spark Gap Protective Tube from Canada
Gas-filled tube providing overvoltage protection by controlled spark discharge between electrodes. Used in telecom/power systems. HTS 8540.89.00.80 as other gas-filled tubes.
Duty Rate — Canada → United States
13.7%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• UL/CSA safety certifications mandatory for electrical protection devices
• Specify breakdown voltage and gas fill to avoid semiconductor arrester classification
• Tower lightning protection systems classify under 8538.90