Diesel Generator AVR Automatic Voltage Regulator

This automatic voltage regulator (AVR) maintains stable output voltage in diesel generators by sensing and adjusting excitation current to the rotor. It is a specialized electronic control module designed exclusively for use with AC generators of heading 8502. Classified under 8503.00.95.50 as a part of generators, not suitable for other machines.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China3%+35.0%38%
🇲🇽Mexico3%+10.0%13%
🇨🇦Canada3%+10.0%13%
🇩🇪Germany3%+10.0%13%
🇯🇵Japan3%+10.0%13%

Alternative Classifications

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

8537.10.91Higher: 52.7% vs 38%

If used as a standalone board without generator-specific design

General control panels and boards fall under 8537 unless proven principally for generators

8501.32Lower: 27% vs 38%

If classified with electric motors rather than generators

Parts must be principally for 8502 generators; motor-specific parts go to 8501

8504.40.95Lower: 35% vs 38%

If imported as part of a complete power supply converter assembly

Static converters have separate classification even if used in generator sets

Not sure which classification is right?

Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.

Import Tips & Compliance

Verify the part is explicitly designed for generators of 8502 via manufacturer specs and obtain supplier declaration to avoid reclassification as general electrical parts

Include detailed technical datasheets showing generator-specific compatibility in import documentation to prevent customs holds

Related Products under HTS 8503.00.95.50

Portable Generator Carbon Steel Muffler Exhaust

Carbon steel muffler designed to reduce noise from portable gasoline generator exhaust systems, featuring specific mounting points for heading 8502 generators. This silencer is engineered solely for generator engine exhaust control. Falls under 8503.00.95.50 as a generator-specific part.

Industrial Generator Stator Winding Assembly

Copper stator winding coils pre-assembled for large industrial diesel generators, providing the stationary magnetic field component. Specifically engineered for high-capacity generators of heading 8502. Classified in 8503.00.95.50 as irreplaceable generator rotor counterpart.

Backup Generator Digital Control Panel PCB

Printed circuit board for standby generator control panels displaying voltage, frequency, and engine status with generator-specific firmware. Designed exclusively for automatic transfer switch integration in heading 8502 generators. Under 8503.00.95.50 as generator control electronics.

Marine Generator Cooling Water Pump Impeller

Bronze impeller for seawater cooling pumps in marine diesel generators, designed for high-corrosion saltwater environments specific to marine heading 8502 generators. Precision-engineered for generator cooling system flow rates. 8503.00.95.50 generator parts classification.

Wind Turbine Generator Yaw Drive Gearbox

Precision planetary gearbox for wind turbine generator yaw systems, orienting nacelle into wind for optimal generator operation under heading 8502. High-torque, weatherproof design for turbine generators. Classified 8503.00.95.50 as generator positioning mechanism.

Standby Generator Battery Charger Rectifier

Solid-state rectifier bridge for charging generator starting batteries during idle periods, integrated into standby generator control cabinets. Voltage-matched specifically for generator battery systems under heading 8502. 8503.00.95.50 classification for generator electrical parts.