HS Code for Rectifier

Rectifiers are classified under HS code 8504.40 as electrical static converters. Heading 8504 covers electrical transformers, static converters (for example, rectifiers), and inductors. A rectifier is a device that converts alternating current (AC), which periodically reverses direction, to direct current (DC), which flows in only one direction. This process is known as rectification. The term "static" in the HS description refers to the fact that the conversion is performed by electronic components (such as diodes, thyristors, or transistors) without moving parts, as opposed to rotary converters which use mechanical motion. This classification applies to individual rectifying units, bridge rectifiers, and power supply units that incorporate rectifying circuitry to provide DC power to electronic equipment. The classification is based on the function of the device as a converter of electrical energy. Under GRI 1, the specific mention of "static converters" in heading 8504 makes 8504.40 the primary code for these devices. This includes both industrial-scale rectifiers and small consumer electronics power adapters that perform AC-to-DC conversion.

Products Included

• Diode rectifiers
• Bridge rectifiers
• AC/DC adapters (power supplies)
• Silicon Controlled Rectifiers (SCRs) when mounted in a module
• Inverters (which are also static converters)
• Battery chargers (classified as static converters)

Common Misclassification

Rectifiers are often misclassified under HS code 8541.10, which covers individual diodes. While a rectifier is made of diodes, a completed rectifying circuit or module is a static converter under 8504.40. Another common error is using HS code 8504.31 for transformers. While many rectifiers include a transformer to step down voltage, the conversion from AC to DC makes the entire unit a static converter. Additionally, voltage regulators are sometimes confused with rectifiers but are classified under 9032.89 or 8511.80 depending on their application.

FAQ

What is the HS code for Rectifier?

The HS code for a rectifier is 8504.40.

Is a battery charger classified as a rectifier?

Yes, battery chargers are classified under HS code 8504.40 because they function as static converters, converting AC mains power into the DC power required to charge a battery.