Cathodic Protection Rectifier from Japan
Transformer-rectifier unit for impressed current cathodic protection systems preventing corrosion on pipelines, ship hulls, and offshore platforms. Falls under HTS 8543.30.90.80 as specialized electrolysis apparatus generating protective DC current through sacrificial anodes. Automatically adjusts output based on pipeline potential monitoring.
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
• Include NACE corrosion control certifications and remote monitoring specifications in import docs
• Specify impressed current output ratings (10-100A) to distinguish from general rectifiers
• Ensure hazardous location (Class I Div 1) ratings for oil/gas pipeline applications