Electrical Wiring Disc Calculator from Mexico
Disc for electricians calculating wire gauge, voltage drop, conduit fill, and circuit loads. Mathematical instrument under HTS 9017.20.4000. Color-coded heavy plastic construction.
Duty Rate — Mexico → United States
13.9%
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
Import Tips
• Reference to NEC codes supports professional instrument status
• UL listing optional but aids customs clearance
• Avoid residential DIY marketing that suggests toy classification