Ferraz Shawmut FWP High Voltage Semiconductor Fuse from Mexico
Ferraz Shawmut FWP series ultra-fast fuses for 2,300 V+ DC circuits protect semiconductor devices in drives and inverters. HTS 8535.10.00.20 due to high-voltage fusing function. Critical for variable frequency drives in manufacturing.
Duty Rate — Mexico → United States
12.7%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Specify DC vs AC ratings; DC fuses have unique classification risks
• Include I²t values and coordination curves in documentation
• Watch for reclassification if sold with rectifier assemblies