Having a power handling capacity less than 1 kVA
Electrical transformers, static converters (for example, rectifiers) and inductors; parts thereof: > Other transformers: > Having a power handling capacity not exceeding 1 kVA: > Other: > Having a power handling capacity less than 1 kVA
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)
Subheadings
Products classified under HTS 8504.31.40
5V USB Wall Charger Adapter 18W
USB Type-A wall charger converting 100-240VAC to 5VDC/3A (18W max), with foldable prongs for travel. Classified under HTS 8504.31.40 due to power handling capacity well below 1kVA as a static converter. Meets DOE Level VI energy efficiency standards.
24V DC-DC Step-Down Converter 50W
DC-DC buck converter module transforming 36-60VDC input to 24VDC/2A output (50W), used in solar and automotive applications. HTS 8504.31.40 classification applies as static converter with capacity under 1kVA. IP67 waterproof enclosure for industrial environments.
15V Laptop Power Adapter Brick 65W
External switching power supply for laptops, 100-240VAC to 15VDC/4.3A (65W), with 4-pin barrel connector. Falls under HTS 8504.31.40 for power handling capacity less than 1kVA. Includes short-circuit and overvoltage protection circuits.
LED Driver 12V 60W Constant Voltage
Waterproof IP67 LED driver converting 90-265VAC to 12VDC/5A constant voltage for LED strip lighting. HTS 8504.31.40 as static converter under 1kVA power handling. Dimmable with PWM signal input.
PoE Injector 48V 30W Gigabit
Power over Ethernet injector supplying 48VDC/0.65A (30W) to PoE devices via CAT5/6 cable. Converts 100-240VAC to DC while passing 10/100/1000 Ethernet data. HTS 8504.31.40 for <1kVA static conversion function.
Audio Amplifier Power Supply 24V 100W
Switching power supply for professional audio amplifiers, 85-265VAC to dual rail ±24VDC total 100W. Medical-grade isolation and low ripple for clean audio performance. Under HTS 8504.31.40 (<1kVA capacity).
CCTV Camera Power Adapter 12V 2A
Weatherproof 12VDC/2A (24W) power adapter for security cameras with surge protection. Converts 100-240VAC input with DC jack output. HTS 8504.31.40 classification for low-power static converter.
12V AC-DC Switching Power Supply 30W
Compact switching power supply converting 85-264VAC to 12VDC output with 2.5A capacity, total power under 30W (0.03kVA). Falls under HTS 8504.31.40 as a static converter/transformer with power handling capacity less than 1kVA, designed for low-power electronics. Commonly used for LED lighting strips and CCTV cameras.