Having a power handling capacity exceeding 500 kVA

8504.32.00Having a power handling capacity exceeding 1 kVA but not exceeding 16 kVA

8504.33.00Having a power handling capacity exceeding 16 kVA but not exceeding 500 kVA

8504.34.00Having a power handling capacity exceeding 500 kVA

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Products classified under Tariff item 8504.3

100VA Multi-Tap Buck-Boost Transformer

A 100VA multi-tap buck-boost transformer for voltage correction in commercial buildings, adjusting 208V to 240V for appliances. With a power handling capacity of 100VA, it falls under tariff item 8504.31.00 for transformers not exceeding 1kVA.

12V AC-DC Switching Power Supply 30W

A compact switching power supply converting 85-264VAC to 12VDC with 2.5A capacity, total power under 30W (0.03kVA). It falls under tariff item 8504.31.00 as a transformer with power handling capacity less than 1 kVA.

12V AC Wall Adapter Transformer

A compact step-down transformer rated at 15VA, converting 120V AC mains to 12V AC for low-voltage devices such as doorbells or small appliances. It features a wall-plug design and thermal protection. With power handling under 1 kVA, it is classified under 8504.31.00.

15V Laptop Power Adapter Brick 65W

An external switching power supply for laptops, converting 100-240VAC to 15VDC/4.3A (65W), under 1 kVA. It includes short-circuit and overvoltage protection.

24V DC-DC Step-Down Converter 50W

A DC-DC buck converter module transforming 36-60VDC input to 24VDC/2A output (50W), used in solar and automotive applications. It is under 1 kVA and classified under tariff item 8504.31.00.

24V Doorbell Transformer

A standard household doorbell transformer converting 120V AC to 24V AC with a 30VA capacity, featuring screw terminals for wiring. It is designed for low-voltage chime systems and is typically mounted on a junction box. As a transformer under 1 kVA, it falls under 8504.31.00.

40VA Step-Down Transformer for Audio Equipment

A 40VA step-down transformer converting 120V AC to 12V AC for audio amplifiers and preamps in home theater systems. Its power handling capacity of 40VA places it under tariff item 8504.31.00 for transformers not exceeding 1kVA.

45VA Door Bell Transformer

A 45VA doorbell transformer converting 120V to 16V AC for residential chime systems and video doorbells. With a power handling capacity of 45VA, it falls under tariff item 8504.31.00 for transformers not exceeding 1kVA.

50VA LED Driver Transformer

A 50VA electronic transformer for low-voltage LED lighting strips and recessed fixtures, operating at 12V/24V output. Its power handling capacity of 50VA places it under tariff item 8504.31.00 for transformers not exceeding 1kVA.

55VA Security Camera Power Transformer

A 55VA transformer powering multiple CCTV cameras with 24VAC output for analog security systems. With a power handling capacity of 55VA, it falls under tariff item 8504.31.00 for transformers not exceeding 1kVA.

5V USB Charger Transformer Module

A miniature AC-DC transformer module rated at 10VA with a USB output port for charging small electronics like wireless earbuds or IoT sensors. It converts mains voltage to 5V DC via an integrated rectifier and regulator. As a static converter under 1 kVA, it is classified under 8504.31.00.

5V USB Wall Charger Adapter 18W

A USB Type-A wall charger converting 100-240VAC to 5VDC/3A (18W max), under 1 kVA. It features foldable prongs for travel and meets energy efficiency standards.

60VA Medical Isolation Transformer

A 60VA isolation transformer for medical devices like patient monitors and diagnostic equipment, providing galvanic isolation. Its power handling capacity of 60VA places it under tariff item 8504.31.00 for transformers not exceeding 1kVA.

65VA Toy Train Transformer

A 65VA variable output transformer for Lionel and MTH scale model train layouts, providing 14-20V AC with whistle/horn activation. With a power handling capacity of 65VA, it falls under tariff item 8504.31.00 for transformers not exceeding 1kVA.

Audio Amplifier Power Supply 15V 800mA

A switch-mode power supply that steps down AC mains to 15V DC at 800mA (12W), well under the 1 kVA limit of tariff item 8504.31.00. It is designed for small audio amplifiers and features low-noise output to preserve sound quality.

Audio Amplifier Power Supply 24V 100W

A switching power supply for professional audio amplifiers, converting 85-265VAC to dual rail ±24VDC total 100W. It features medical-grade isolation and low ripple, under 1 kVA.

Audio Equipment Step-Down Transformer

An 18VA toroidal transformer for powering tube preamplifiers and small audio components, providing clean isolated 12V AC power. Its toroidal core reduces electromagnetic interference for audio applications. As a transformer under 1 kVA, it falls under 8504.31.00.

CCTV Camera Power Adapter 12V 1A

A dedicated DC power adapter for CCTV cameras, converting 110V AC to 12V DC at 1A (12W), under the 1 kVA threshold. It is weather-resistant for outdoor use and unrated for general surveillance applications.

CCTV Camera Power Adapter 12V 2A

A weatherproof 12VDC/2A (24W) power adapter for security cameras, converting 100-240VAC input to a regulated DC output via a jack connector. It includes surge protection and is designed for continuous outdoor operation. As a static converter with power handling capacity not exceeding 1 kVA, it falls under tariff item 8504.31.00.

Christmas Light String Transformer

A 28VA weather-resistant transformer for LED holiday light displays, featuring a timer function and outlet protection. It converts 120V AC to low-voltage AC for seasonal decorative lighting. As a transformer under 1 kVA, it is classified under 8504.31.00.

Doorbell Transformer 16V 10VA

A step-down transformer for wired doorbells, converting 120V AC to 16V AC at 10VA, under 1 kVA. It is hardwired with screw terminals for residential installation.

Halogen Landscape Spotlight Transformer

A 35VA electronic transformer for 12V MR16 halogen garden spotlights, with overload protection and a weatherproof enclosure. It converts 120V AC to 12V AC for outdoor lighting. As a transformer under 1 kVA, it falls under 8504.31.00.

IoT Sensor Hub Power Adapter 5V 1A

A compact adapter powering smart home sensor hubs, providing 5V 1A DC from AC mains (under 1 kVA). It supports multiple sensor inputs and is unrated for connected devices.

LED Driver 12V 60W Constant Voltage

An IP67 waterproof LED driver converting 90-265VAC to 12VDC at 5A (60W) constant voltage for LED strip lighting. It supports PWM dimming signals and is housed in a sealed enclosure for outdoor or damp locations. As a static converter under 1 kVA, it is classified under 8504.31.00.

LED Strip Light Driver Transformer

A 15VA constant voltage transformer for 12V DC LED tape lighting, featuring short-circuit protection. It provides AC output that requires external rectification for DC LEDs. As a transformer under 1 kVA, it is classified under 8504.31.00.

LED Strip Light Power Supply 24V 0.75A

An enclosed power supply converting 120V AC to 24V DC at 0.75A (18W), under 1 kVA, for LED strip lighting. It acts as an unrated transformer with basic overcurrent protection.

Low Voltage Landscape Lighting Transformer

A weatherproof 20VA transformer for 12V AC landscape path lighting systems, with a photocell for dusk-to-dawn control. It converts 120V AC to low-voltage AC for outdoor residential lighting. As a transformer under 1 kVA, it falls under 8504.31.00.

Medical Device Isolation Transformer

An 8VA medical-grade isolation transformer for patient monitoring equipment, providing galvanic isolation with low leakage current. It is designed to meet stringent medical safety standards. As a transformer under 1 kVA, it is classified under 8504.31.00.

Miniature Model Railroad Transformer

A 10VA precision transformer for Z-scale and N-scale model railroad layouts, providing smooth DC conversion via an integrated throttle. It is compact for hobby benchtop operation. As a transformer under 1 kVA, it falls under 8504.31.00.

PoE Injector 48V 30W Gigabit

A Power over Ethernet (PoE) injector supplying 48VDC at 0.65A (30W) to network devices while passing Gigabit Ethernet data over CAT5/6 cabling. It converts 100-240VAC to DC and includes data isolation. As a static converter with power handling under 1 kVA, it falls under 8504.31.00.

RFID Reader Power Transformer

A 12VA surface-mount transformer for embedded RFID reader modules, providing isolated 5V AC supply. It is designed for low-power IoT applications and is compact for PCB mounting. As a transformer under 1 kVA, it is classified under 8504.31.00.

Sous Vide Immersion Circulator Transformer

A 30VA low-profile transformer for kitchen sous vide cooking appliances, providing precise low-voltage control power. It is designed for compact installation within the appliance. As a transformer under 1 kVA, it falls under 8504.31.00.

Toy Train Power Supply 18V 0.5A

A wall adapter powering model train sets, converting AC to 18V DC at 0.5A (9W), under 1 kVA. It features polarity reversal protection for hobbyist use.

Toy Train Set Power Supply Transformer

A 25VA transformer designed for O-gauge model train layouts, providing variable 14V AC output with throttle control and a whistle feature. Its power handling capacity of 25VA is below 1kVA, classifying it under tariff item 8504.31.00.

Travel Power Adapter with USB Ports

A multi-region travel adapter converting 100-240V AC to dual USB 5V/2.4A outputs (under 1 kVA), serving as an unrated transformer for international charging. It includes interchangeable plugs.

USB Wall Charger 5V 2A for Smartphones

A universal USB wall charger that steps down AC mains to 5V DC at 2A (10W), under 1 kVA. It features foldable prongs for travel and is essential for charging mobile devices.

Valve Preamp Heater Transformer

A 20VA custom-wound transformer for vacuum tube guitar amplifier heater circuits, featuring a center-tapped 6.3V filament winding. With a power handling capacity of 20VA, it falls under tariff item 8504.31.00 for transformers not exceeding 1kVA.

Wall-Mount AC/DC Power Adapter 12V 1A

A compact wall-mount power adapter converting 100-240V AC to 12V DC at 1A, under 1 kVA. It is commonly used to power routers, LED strips, and small electronics.

Wireless Doorbell Power Adapter

A 16VA plug-in transformer for wireless doorbell systems, converting mains power to 16V AC with surge protection. Its low power handling capacity of 16VA places it under tariff item 8504.31.00 for transformers under 1kVA.

Wireless Mouse USB Receiver Power Adapter

A mini power adapter for USB dongle charging in wireless peripherals, providing 5V 0.5A output (under 1 kVA). It is compact for office desk use.

ABB T3541-1 10kVA Single-Phase Distribution Transformer

A single-phase pole-mounted distribution transformer rated at 10kVA, used to step down voltage for residential and light commercial power distribution. This transformer falls under tariff item 8504.32.00 because its power handling capacity exceeds 1 kVA but does not exceed 16 kVA.

Acme Electric T-2-53013-X 7.5kVA Buck-Boost Transformer

A 7.5kVA single-phase buck-boost transformer used to adjust voltage for motors and lighting loads. It qualifies under tariff item 8504.32.00 because its power handling capacity is within the 1 kVA to 16 kVA range.

Custom Electronics CE-TX-8KVA-K12 8kVA K-Factor Transformer

An 8kVA K-factor rated transformer designed to handle harmonic distortion from variable frequency drives and non-linear loads. It falls under tariff item 8504.32.00 because its power handling capacity exceeds 1 kVA but does not exceed 16 kVA.

Eaton S2T10G 10kVA Pad-Mounted Transformer

A 10kVA three-phase pad-mounted transformer designed for underground residential distribution (URD) applications. It is classified under tariff item 8504.32.00 because its power handling capacity is between 1 kVA and 16 kVA.

Ferraz Shawmut 10kVA Phase Converter Transformer

A 10kVA autotransformer used in rotary phase converter systems to create three-phase power from single-phase supply. It falls under tariff item 8504.32.00 because its power handling capacity is within the 1 kVA to 16 kVA range.

GE Industrial Solutions 9T51Y2211G11 10kVA Ventilation Transformer

A 10kVA dry-type transformer used for HVAC ventilation fan control circuits. It is classified under tariff item 8504.32.00 because its power handling capacity exceeds 1 kVA but does not exceed 16 kVA.

Hammond Power Solutions HPS Titan N 12.5kVA Transformer

A 12.5kVA dry-type transformer for industrial control panels and HVAC equipment. It falls under tariff item 8504.32.00 because its power handling capacity is between 1 kVA and 16 kVA.

Howard Industries P4-0-150DS-150T 15kVA Pole Transformer

A 15kVA single-phase conventional pole transformer for rural electrification. It is classified under tariff item 8504.32.00 because its power handling capacity exceeds 1 kVA but does not exceed 16 kVA.

Larson Electronics TP-45-480V-3PH-15KVA 15kVA Temporary Power Transformer

A portable 15kVA three-phase step-down transformer for construction site power. It falls under tariff item 8504.32.00 because its power handling capacity is within the 1 kVA to 16 kVA range.

Magnetics Inc. Custom 12kVA Audio Isolation Transformer

A custom-wound 12kVA audio isolation transformer used to eliminate ground loops in professional recording studios. It is classified under tariff item 8504.32.00 because its power handling capacity exceeds 1 kVA but does not exceed 16 kVA.

MGM Transformer Company TY041A005P 5kVA Industrial Transformer

A 5kVA three-phase transformer for heavy industrial applications like welders and pumps. It falls under tariff item 8504.32.00 because its power handling capacity is between 1 kVA and 16 kVA.

Schneider Electric MTU-15kVA 15kVA UPS Transformer

A 15kVA isolation transformer providing galvanic isolation for uninterruptible power supplies in data centers. It is classified under tariff item 8504.32.00 because its power handling capacity exceeds 1 kVA but does not exceed 16 kVA.

SolaHD E5H15S15X 15kVA Epoxy Encapsulated Transformer

A 15kVA epoxy encapsulated transformer for harsh industrial environments. It falls under tariff item 8504.32.00 because its power handling capacity is within the 1 kVA to 16 kVA range.

Square D EXN72100T 10kVA Energy Efficient Transformer

A 10kVA energy-efficient dry-type transformer for commercial buildings. It is classified under tariff item 8504.32.00 because its power handling capacity exceeds 1 kVA but does not exceed 16 kVA.

Tripp Lite ISOBAR600 6kVA Medical Grade Isolation Transformer

A 6kVA hospital-grade isolation transformer that reduces common mode noise for medical equipment. It falls under tariff item 8504.32.00 because its power handling capacity is between 1 kVA and 16 kVA.

100 kVA Dry-Type Cast Coil Transformer

A 100 kVA dry-type cast coil transformer for indoor industrial applications, converting 480V delta to 208Y/120V. It falls under tariff item 8504.33.00 as a power transformer with a power handling capacity exceeding 16 kVA but not exceeding 500 kVA.

125 kVA Hospital Emergency Power Transformer

A 125 kVA dry-type transformer for hospital UPS and emergency power systems, converting 480V to 208V with low impedance for generator starts. It is classified under tariff item 8504.33.00 as a power transformer with a capacity exceeding 16 kVA but not exceeding 500 kVA.

150 kVA Oil-Filled Substation Transformer

A 150 kVA oil-filled pad-mounted substation transformer for three-phase distribution, stepping down 12.47 kV to 480V. It falls under tariff item 8504.33.00 as a power transformer with a capacity exceeding 16 kVA but not exceeding 500 kVA.

18 kVA Marine Step-Down Transformer

An 18 kVA dry-type step-down transformer for shipboard use, converting 440V to 230V with an IP56 enclosure and epoxy coating for saltwater environments. It falls under tariff item 8504.33.00 as a power transformer with a capacity exceeding 16 kVA but not exceeding 500 kVA.