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Automatic regulating or controlling instruments and apparatus; parts and accessories thereof: > Parts and accessories: > Of automatic voltage and voltage-current regulators: > Other
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 9903.88.05, 9903.88.06, 9903.88.07, 9903.88.08, 9903.88.10, 9903.88.11, 9903.88.14, 9903.88.19, 9903.88.50, 9903.88.52, 9903.88.58, 9903.88.60, 9903.88.62, 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(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(b) [to this subchapter]
Products classified under HTS 9032.90.41.00
Tap Changer Mechanism for AVR
Electromechanical tap changer that selects transformer windings for voltage correction in AVRs. Accessory under HTS 9032.90.41.00 for voltage regulators. Ensures step-wise voltage adjustment.
AVR Enclosure Mounting Bracket
Custom aluminum bracket for securing voltage regulator components within protective enclosures. Minor but essential accessory under HTS 9032.90.41.00. Supports structural integrity.
Voltage Regulator Surge Protection Module
MOV-based module integrated into AVRs to clamp transient voltages protecting control circuits. Part of voltage-current regulators under HTS 9032.90.41.00.
AVR Input Filter Capacitor Bank
High-capacity electrolytic capacitors filtering noise in AVR input stages for clean regulation. Dedicated accessory HTS 9032.90.41.00.
Remote Monitoring Interface for AVR
RS485/RS232 interface board for remote voltage/current data from regulators. Under HTS 9032.90.41.00 as accessory.
AVR Overload Alarm Buzzer
Piezo buzzer triggered by regulator controls for audible overload alerts. Part HTS 9032.90.41.00.
Voltage Regulator Test Harness Connector
Custom connector harness for factory testing AVR boards and components. Accessory under HTS 9032.90.41.00.
Digital Voltage Regulator Control Board
A printed circuit board with embedded microcontrollers designed specifically for automatic voltage regulators (AVRs) to monitor and adjust output voltage in real-time. It falls under HTS 9032.90.41.00 as a dedicated part for voltage-current regulators, excluding general-use components. This ensures precise regulation in power supply systems.
AVR Voltage Sensing Transformer Module
A compact transformer module that senses input voltage fluctuations and feeds data to the regulator's control unit in automatic voltage regulators. Classified under HTS 9032.90.41.00 as an essential accessory for voltage-current regulators. It enables accurate feedback for stable power output.
Automatic Voltage Stabilizer Relay Switch
Electromechanical relay switch that activates voltage correction circuits in response to control signals from AVRs. It is a core accessory for automatic voltage and current regulators under HTS 9032.90.41.00. Ensures seamless switching for output stability.
Servo Motor Assembly for Voltage Regulators
Precision servo motor that drives the variac or tap changer in servo-controlled automatic voltage regulators for fine voltage adjustments. Dedicated part under HTS 9032.90.41.00 for voltage-current regulators. Provides mechanical actuation based on electronic feedback.
AVR Digital Display Panel
LCD panel integrated into automatic voltage regulators showing real-time voltage, current, and status indicators. Accessory under HTS 9032.90.41.00 as part of voltage regulator systems. Enhances user monitoring without separate classification.
Voltage Regulator Cooling Fan Module
Thermally controlled fan module that prevents overheating in high-power automatic voltage regulators by monitoring internal temperature. Classified as accessory under HTS 9032.90.41.00 for voltage-current regulators. Integrates with control circuitry.
AVR Output Current Sensor
Hall effect sensor module measuring output current in automatic voltage regulators for overload protection and feedback. Falls under HTS 9032.90.41.00 as dedicated voltage-current regulator part. Enables precise current regulation.
Programmable AVR Microcontroller Chip
Custom-programmed MCU chip handling PID algorithms for voltage stabilization in automatic regulators. Specific part under HTS 9032.90.41.00 excluding general ICs. Core to regulator intelligence.