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Silent Knight Fire Alarm Control Panel Interface

A notification appliance circuit (NAC) expander for fire alarm control panels, providing signaling outputs for horns and strobes. It is classified under tariff item 8531.10.90 as 'other' fire alarm apparatus, since it extends the signaling capabilities of a fire alarm system rather than being a standalone detector.

Import Duty Rates by Country of Origin

Origin CountryMFN TariffSurtaxesTotal Effective Rate
🇨🇳China6.5%—6.5%
🇲🇽Mexico6.5%—6.5%
🇺🇸United States6.5%—6.5%
🇩🇪Germany6.5%—6.5%
🇯🇵Japan6.5%—6.5%

More Specific Codes

This product may fall under a more specific subheading:

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

8531.10.10Lower: Free vs 6.5%

If the expander includes integrated smoke or gas detection functions

This item covers indicating or automatic alarm equipment for detecting noxious gases or vapours, and smoke detectors.

8537.10.11Lower: Free vs 6.5%

If the expander is a programmable controller for a fire alarm system

Programmable controllers for electrical control are classified under heading 85.37.

Not sure which classification is right?

The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.

Import Tips & Compliance

• Ensure the NAC expander is declared as a fire alarm component, not a generic electrical part, to benefit from the applicable duty rate

• Have the manufacturer's technical documentation ready to show its function in a fire alarm system

• Verify whether the goods qualify for any free trade agreement preference

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