Fire Alarm Printed Circuit Board Assembly
This printed circuit assembly (PCA) is the core control board for residential smoke and fire detection systems, processing sensor inputs and triggering audible alarms. It falls under HTS 8531.90.3000 as a part of electric fire alarm apparatus, specifically a printed circuit assembly not classified elsewhere in heading 8531. Designed for integration into complete fire alarm units.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If sold as complete bell or buzzer assembly with housing
Complete sound signaling apparatus with integrated PCA falls under finished bells/sirens, not parts.
If for use in automatic data processing machines
PCAs specifically for computers classified under ADP parts in Chapter 84, not signaling apparatus.
If primarily measuring and indicating electrical quantities
Measurement and control PCAs go to Chapter 90 if function is monitoring vs pure signaling.
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Import Tips & Compliance
• Verify FCC certification for electromagnetic compatibility as fire alarm PCAs must meet UL 268 standards
• Include detailed bills of materials (BOM) showing components to avoid misclassification as complete alarms
Related Products under HTS 8531.90.30.00
Industrial Siren Driver Circuit Board
Robust PCA designed to drive high-decibel electronic sirens in factories and warehouses for emergency evacuation alerts. Meets 8531.90.3000 as a printed circuit assembly part for visual/sound signaling apparatus other than bells. Features tone generation and amplifier control circuits.
Elevator Floor Indicator Circuit Board
PCA driving LED/LCD displays showing elevator car position and direction to passengers. Classified in 8531.90.3000 as parts of visual signaling apparatus for building safety and navigation. Supports multiple floors with arrow indicators.
Backup Alarm PCA for Heavy Equipment
Printed circuit assembly powering reverse-tone generators in construction vehicles for audible safety warnings. Under HTS 8531.90.3000 as parts of sound signaling apparatus for industrial vehicles. Features variable tone and self-test functions.
Emergency Exit Strobe Light Controller
PCA controlling high-intensity strobe flashes in building emergency exit signs for visual egress guidance. Under 8531.90.3000 as printed circuit parts of visual signaling apparatus for fire safety. Battery backup circuit included.
Railroad Crossing Signal PCA
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Patient Call System Nurse Station PCA
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