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SITCSection 8
U.S. imports of time switches with clock, watch, or synchronous motor movement (SITC 88595) totaled $4.6M in April 2026, traded with 25 countries.
Importers of Time Switches with Clock, Watch, or Synchronous Motor Movement paid $466K in duties in April 2026 — an effective duty rate of 26% on $1.8M in dutiable value, based on actual customs collections rather than the published tariff schedule. Time Switches with Clock, Watch, or Synchronous Motor Movement imports of $4.6M in April 2026 ran 36% below the year-to-date monthly average of $7.2M.
Last updated: April 2026 dataDriven by a clock, watch, or synchronous motor mechanism, time switches automatically open or close electrical circuits at pre-set intervals — a core component in building automation, HVAC controls, irrigation systems, and industrial process management. The synchronous-motor requirement distinguishes these from purely electronic or programmable logic timer relays, which classify elsewhere. Trade professionals sourcing these devices should verify that the internal movement type is documented, as the mechanism — not the switching function alone — determines correct classification under this heading.
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Not necessarily. This heading specifically requires a clock or watch movement or a synchronous motor as the driving mechanism. Fully electronic or microprocessor-controlled timers without such a mechanical or synchronous-motor element typically classify under electrical apparatus or control equipment headings rather than here. The internal mechanism must be verified against the technical specification.
Importers should obtain a technical data sheet or engineering drawing confirming the type of internal movement — specifically whether it is a clock/watch movement or a synchronous motor. A bill of materials or component list can also help demonstrate the mechanism type to customs authorities if the classification is questioned during entry review.
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Monthly import values over time