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Ring Generator for Telephony from Mexico

An electronic device generating ringing voltage for analog telephone systems connected to telephonic networks. Falls under HTS 8543.70.60.00 as specialized apparatus for telephonic instruments.

Duty Rate — Mexico → United States

10%

Rate breakdown

9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico

Import Tips

Document frequency (16-25Hz) and voltage (75-90Vrms) specs for verification

Electrical safety certifications critical for high-voltage line devices

Distinguish from general power supplies by emphasizing telephony signaling