Ceramic Phase Barrier Insulator from Mexico
Ceramic phase barriers used in medium-voltage switchgear to separate electrical phases, molded with minor metal fixing points. Essential for arc flash prevention and phase-to-phase insulation. Classified HTS 8547.10.80.00 as insulating fittings wholly of ceramics.
Duty Rate — Mexico → United States
13%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Specify tracking resistance (CTI >600); provide flashover voltage test data; ensure compliance with NEMA/ANSI standards for US electrical codes