HS Code | Official Doc | Tariff Rate | Origin | Destination | Effective Date |
---|---|---|---|---|---|
8504406001 | Doc | 55.0% | CN | US | 2025-05-12 |
8504406018 | Doc | 55.0% | CN | US | 2025-05-12 |
8536100020 | Doc | 57.7% | CN | US | 2025-05-12 |
8536698000 | Doc | 57.7% | CN | US | 2025-05-12 |
3901909000 | Doc | 61.5% | CN | US | 2025-05-12 |
3901905501 | Doc | 61.5% | CN | US | 2025-05-12 |
Visual Doorbell Power Supply
A visual doorbell power supply provides electrical power to operate a video doorbell, a security device that allows homeowners to see and speak to visitors remotely. These power supplies are crucial components, as they ensure consistent operation of the doorbell's camera, microphone, speaker, and wireless connectivity.
Material
Power supplies for visual doorbells typically incorporate the following materials:
- Plastic Housing: Often ABS or polycarbonate, providing insulation and protection from the elements.
- Circuit Board: Contains the electronic components for voltage conversion and regulation.
- Transformer: Steps down the mains voltage (typically 120V or 240V AC) to a lower voltage (typically 16V or 24V AC or 5V-12V DC) suitable for the doorbell.
- Rectifier & Filter Capacitors: Convert AC to DC if the doorbell requires DC power.
- Voltage Regulators: Maintain a stable output voltage despite fluctuations in input voltage or current draw.
- Wiring & Connectors: Facilitate connection to the mains power and the doorbell itself.
- Internal Fuse: Provides overcurrent protection.
Purpose
The primary purpose of a visual doorbell power supply is to reliably convert household AC power into a stable DC or AC voltage suitable for powering the video doorbell's functions. This includes:
- Camera Operation: Providing power for the video sensor and image processing.
- Microphone & Speaker Functionality: Enabling two-way audio communication.
- Wireless Connectivity: Supporting Wi-Fi or Bluetooth communication for remote access.
- Infrared (IR) Illumination: Powering the IR LEDs for night vision.
- Chime Activation: In some models, powering the internal chime or communicating with a wireless chime receiver.
Function
A visual doorbell power supply functions by:
- Voltage Transformation: Reducing the high-voltage AC from the mains power supply to a lower, safer voltage.
- AC to DC Conversion (if necessary): Converting alternating current to direct current using a rectifier and filter capacitor.
- Voltage Regulation: Maintaining a consistent output voltage to prevent damage to the doorbell's sensitive electronics.
- Overcurrent Protection: Protecting the power supply and doorbell from damage due to short circuits or excessive current draw.
- Isolation: Providing electrical isolation between the mains power and the doorbell circuitry for safety.
Usage Scenarios
- New Installations: Used when installing a new wired video doorbell.
- Replacements: Replacing a faulty or damaged power supply.
- Upgrades: Upgrading an existing doorbell system to a visual doorbell.
- Compatibility: Ensuring compatibility with the voltage and current requirements of the specific doorbell model.
- Indoor Use: Most power supplies are designed for indoor use, typically mounted near the doorbell.
Common Types
- Transformer-Based Power Supplies: These are the most common type, using a transformer to step down the voltage. They are relatively inexpensive and reliable.
- Switching Power Supplies: More efficient than transformer-based supplies, generating less heat. They are often smaller in size.
- Plug-In Power Supplies: These plug directly into a standard electrical outlet.
- Hardwired Power Supplies: These are wired directly into the home's electrical system.
- Universal Power Supplies: Designed to work with a range of doorbell models and voltage requirements.
- PoE (Power over Ethernet) Power Supplies: Used with IP-based doorbells that transmit power and data over a single Ethernet cable. (Less common for standard residential video doorbells)
The declared goods are a power supply for a visual doorbell. Based on the provided information, the following HS codes may be applicable:
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8504406001: Electrical transformers, static converters (for example, rectifiers) and inductors; parts thereof: Static converters: Power supplies for automatic data processing machines or units thereof of heading 8471; power supplies for goods of subheading 8443.31 or 8443.32; power supplies for monitors of subheading 8528.42 or 8528.52 or projectors of subheading 8528.62: Suitable for physical incorporation into automatic data processing machines or units thereof of heading 8471 With a power output not exceeding 50 W.
- 8504: Electrical apparatus for making or breaking electrical circuits.
- 8504.40: Electrical transformers, static converters and inductors.
- 8504.40.60: Static converters.
- 8504.40.60.01: Power supplies for automatic data processing machines or units thereof of heading 8471; power supplies for goods of subheading 8443.31 or 8443.32; power supplies for monitors of subheading 8528.42 or 8528.52 or projectors of subheading 8528.62: Suitable for physical incorporation into automatic data processing machines or units thereof of heading 8471 With a power output not exceeding 50 W.
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8504406018: Electrical transformers, static converters (for example, rectifiers) and inductors; parts thereof: Static converters: Power supplies for automatic data processing machines or units thereof of heading 8471; power supplies for goods of subheading 8443.31 or 8443.32; power supplies for monitors of subheading 8528.42 or 8528.52 or projectors of subheading 8528.62: Suitable for physical incorporation into automatic data processing machines or units thereof of heading 8471 Other.
- 8504: Electrical apparatus for making or breaking electrical circuits.
- 8504.40: Electrical transformers, static converters and inductors.
- 8504.40.60: Static converters.
- 8504.40.60.18: Power supplies for automatic data processing machines or units thereof of heading 8471; power supplies for goods of subheading 8443.31 or 8443.32; power supplies for monitors of subheading 8528.42 or 8528.52 or projectors of subheading 8528.62: Suitable for physical incorporation into automatic data processing machines or units thereof of heading 8471 Other.
Tax Information: Both HS codes 8504406001 and 8504406018 have a base tariff of 0.0%, an additional tariff of 25.0%, and an additional tariff of 30.0% after April 2, 2025, resulting in a total tariff of 55.0%.
Important Note: The classification depends on whether the power supply is designed for physical incorporation into automatic data processing machines or units thereof of heading 8471. If it is, and the power output is not exceeding 50 W, HS code 8504406001 is more appropriate. Otherwise, HS code 8504406018 should be used.