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Schneider Electric Micrologic Trip Unit from Japan

The Micrologic trip unit is an electronic module for Schneider Electric Masterpact circuit breakers that provides adjustable protection settings for overcurrent and short circuits. It falls under HTS 8538.90.81.20 as a specialized part designed solely for use with automatic circuit breakers in heading 8536. This component integrates microprocessor-based monitoring and tripping functions essential for modern breaker operation.

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

Verify the part is explicitly designed for circuit breakers of heading 8536 via manufacturer specs to avoid reclassification as general electrical parts

Include detailed technical datasheets and compatibility certificates in documentation to prove 'sole or principal use' with automatic circuit breakers