Microwave Oven High Voltage Transformer
This high voltage transformer steps up power to drive the magnetron in microwave ovens, essential for dielectric heating functionality. Classified under HTS 8514.90.4000 as a dedicated part of microwave ovens for heat treatment by dielectric loss. Widely imported for aftermarket repairs of household appliances.
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 universal power supply transformer without oven-specific design
General transformers for electrical apparatus classify separately from oven-dedicated parts.
If parts of other industrial electric ovens or furnaces
Non-microwave oven heating parts go to different 8514 subheading.
If imported as electrical machinery part for unspecified appliances
Lack of microwave oven specificity leads to other electrical equipment parts.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Label clearly as 'for microwave ovens only' to distinguish from general transformers
• Provide voltage ratings (e.g
• 2100V output) matching standard microwave specs in import docs
Related Products under HTS 8514.90.40.00
Microwave Oven Glass Tray Support Ring
Plastic ring supporting the rotating glass turntable in microwave cooking cavities for dielectric heating. Oven-specific design under HTS 8514.90.4000. Frequently broken part.
Microwave Oven Cooling Fan Assembly
Fan assembly cooling electronics and magnetron during dielectric heating operation. Complete microwave oven part under HTS 8514.90.4000. Critical for preventing thermal shutdown.
Microwave Oven Door Latch Mechanism
Mechanical latch securing door and activating microswitches for safe microwave operation. Specific to dielectric loss ovens under HTS 8514.90.4000. Wear item requiring replacement.
Microwave Oven Bi-Metal Thermostat
Bi-metal strip thermostat regulating cavity temperature in microwave dielectric heating systems. Oven-dedicated control under HTS 8514.90.4000. Adjustable safety device.
Microwave Oven Magnetron Cooling Duct
Plastic duct directing airflow to cool magnetron fins during high-power dielectric heating. Specific microwave oven component per HTS 8514.90.4000. Precision molded part.
Microwave Oven Waveguide Cover
The waveguide cover protects the microwave transmission path while allowing waves to pass for even food heating via dielectric loss. It is a plastic component specific to microwave oven design under HTS 8514.90.4000. Commonly replaced due to grease buildup and wear.