Other
Electric sound or visual signaling apparatus (for example, bells, sirens, indicator panels, burglar or fire alarms), other than those of heading 8512 or 8530; parts thereof: > Parts: > Printed circuit assemblies: > Other
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Products classified 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
Heavy-duty printed circuit assembly synchronizing flashing lights and bells at railway grade crossings. Classified 8531.90.3000 as parts of visual/sound signaling for transportation safety. Meets AREMA standards.
Patient Call System Nurse Station PCA
Printed circuit assembly for hospital bedside call systems, processing patient requests and visual/audible nurse alerts. Under HTS 8531.90.3000 as parts of signaling apparatus for healthcare facilities. Multi-zone addressing capability.
Forklift Proximity Warning PCA
Sensor interface printed circuit board for warehouse forklift collision avoidance systems with audible/visual alerts. Fits 8531.90.3000 as parts of industrial vehicle signaling apparatus. Ultrasonic/radar input processing.
Gas Detector Alarm Interface Board
PCA interfacing toxic gas sensors with building alarm systems for audible/visual warnings. Classified under 8531.90.3000 as printed circuit parts of fire/burglar alarm apparatus. Relay outputs for horn/strobe activation.
Parking Garage CO Monitor Controller
Printed circuit assembly managing carbon monoxide sensors and ventilation fan signaling in parking structures. Under 8531.90.3000 as parts of visual/sound signaling for air quality safety. Includes level-based alerts.
Machine Emergency Stop Interface PCA
Safety-rated printed circuit assembly processing E-stop button inputs and signaling machine shutdown. Fits HTS 8531.90.3000 as parts of visual/audible industrial safety signaling. SIL 3 certified.
Intercom System Tone Generator PCA
Printed circuit board generating alert tones and call signaling for building intercom master stations. Under 8531.90.3000 as parts of sound signaling apparatus for communication systems. Multi-tone capability.
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.
Burglar Alarm Control Panel PCB
Printed circuit assembly serving as the main controller for home security systems, handling door/window sensor signals and activating sirens/strobes. Classified under 8531.90.3000 as parts of burglar alarm apparatus due to its role in visual/audible intrusion signaling. Suitable for OEM integration into security panels.
LED Traffic Signal Controller PCA
Printed circuit assembly managing LED sequences in traffic light controllers, providing visual signaling for road safety. Falls under HTS 8531.90.3000 as parts of visual signaling apparatus for public infrastructure. Includes timing circuits and fault detection.
Door Ajar Warning Buzzer PCA
Compact printed circuit assembly for automotive door-open audible alerts, interfacing with vehicle CAN bus. Fits HTS 8531.90.3000 as parts of visual/sound signaling for vehicle safety systems. Includes chime tone generator.