Electrical Wiring Disc Calculator from Japan
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 — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
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