Chapter 85 covers electrical machinery and equipment and parts thereof; sound recorders and reproducers, television image and sound recorders and reproducers, and parts and accessories of such articles. This chapter is one of the most technology-intensive chapters in the HS classification, covering a wide range of goods from household appliances to industrial electrical equipment. Headings within the chapter are organized by function or application area, such as power generation, transformation, storage, and consumption, making it a core chapter for the classification of electromechanical products. Heading 8535 covers electrical apparatus for switching or protecting electrical circuits, or for making connections to or in electrical circuits, including switches, fuses, lightning arresters, surge suppressors, plugs, sockets, junction boxes, etc., for a voltage exceeding 1000 volts. This heading focuses on the safety and control of high-voltage power systems, distinct from low-voltage apparatus (8536) and electronic components (8541, etc.). First 2 digits 85: indicates Chapter 85, i.e., electrical machinery and equipment and parts thereof. Digits 3-4, 35: indicates heading 8535, specifically high-voltage electrical apparatus for switching or protecting electrical circuits, or for making connections to electrical circuits. Digits 5-6, 40: indicates subheading 853540, i.e., lightning arresters and surge suppressors. This subheading specifically covers high-voltage devices used to protect electrical equipment from lightning strikes or switching overvoltage damage, typically connected in parallel in circuits, conducting and discharging when voltage abnormally rises. The goods are lightning arresters or surge suppressors, whose core function is overvoltage protection, and are typically used in high-voltage systems exceeding 1000 volts. Therefore, they are classified under 853540, rather than low-voltage protective devices (8536) or semiconductor overvoltage protection devices (8541). If the voltage does not exceed 1000 volts, they may be classified under 8536; if they are miniature suppressors on electronic circuit boards, they may be classified under 8541.

Product Name: The standard name of the declared goods, which should accurately reflect their function, such as "lightning arrester" or "surge suppressor". Use: Explain the electrical system or equipment for which the goods are used, such as "overvoltage protection for 10kV distribution lines". Brand: The manufacturer or trademark name; if no brand, fill in "no brand". Model: The specific model or specification code of the product, used for unique identification. Voltage: The rated voltage value; it must be clearly stated whether it exceeds 1000 volts, which is key to classification. Structure Type: Such as "metal oxide arrester", "valve-type arrester", "surge protective device", etc. Whether with Discharge Gap: Some arresters contain a discharge gap, which affects classification and origin determination. Product Name: Lightning Arrester; Use: Overvoltage protection for 10kV distribution lines; Brand: ABB; Model: POLIM-D 10; Voltage: 10kV; Structure Type: Metal Oxide Arrester; Whether with Discharge Gap: No. Voltage not clearly stated as exceeding 1000 volts, leading to misclassification under 8536. Confusing surge suppressors with stabilized power supplies, which are classified under 8504. Ignoring brand and model, affecting customs valuation and subsequent audits.

The core criteria for classification are: 1) whether the goods' function is overvoltage protection; 2) whether the rated voltage exceeds 1000 volts; 3) whether it is a high-voltage circuit protection device. If the voltage does not exceed 1000 volts, it should be classified under 8536; if it is a semiconductor device (such as a TVS diode), it is classified under 8541; if it is a lightning protection module inside electronic equipment, it needs to be determined based on voltage and structure. 8536 Low-voltage circuit switches and protection devices: 8536 applies to circuit protection devices for voltages not exceeding 1000 volts, while 853540 is specifically for high-voltage lightning arresters and surge suppressors; voltage is the core distinguishing point. 8541 Semiconductor devices: 8541 covers semiconductor overvoltage protection devices (such as TVS diodes), whose principle is semiconductor junction breakdown, while 853540 is of the gas discharge or metal oxide nonlinear resistance type. 8504 Transformers, static converters: 8504 includes stabilized power supplies and uninterruptible power supplies (UPS), whose function is voltage conversion and stabilization, rather than discharging overvoltage. 8537 Control panels, consoles: 8537 covers complete control equipment incorporating multiple 8535 or 8536 devices; if lightning arresters are declared separately, they should not be classified under 8537. Does the rated voltage exceed 1000 volts? Is the function to discharge lightning current or limit overvoltage? Is it a standalone device rather than part of a complete equipment set? Does it contain no semiconductor active components? Is it distinguished from circuit breakers and fuses?

What is the difference between a lightning arrester and a surge suppressor? Are the HS codes the same? A lightning arrester typically refers to a device used in high-voltage systems to discharge lightning current, while a surge suppressor generally refers to a device that limits transient overvoltage; their functions are similar. In the HS code, as long as the voltage exceeds 1000 volts, both are classified under 853540. If the voltage does not exceed 1000 volts, they are classified under 8536. How to check the import tariff rate for 853540? It can be checked through the official website of the General Administration of Customs of China or the International Trade Single Window. Enter HS code 853540, select the importing country, origin, etc., to obtain the MFN rate, general rate, or agreement rate. Note that tariff rates are subject to policy adjustments; it is recommended to refer to the latest published rates. What import procedures are required for goods under 853540? Generally, basic documents such as contract, invoice, packing list, and bill of lading are required. If compulsory product certification (such as CCC) is involved, a certificate is required. Some high-voltage arresters may require type test reports. Specific requirements are subject to customs regulations. When exporting lightning arresters to the EU, is the HS code the same? The first 6 digits of the EU HS code are consistent with China's, both being 853540. However, the subsequent digits may differ, as EU member states may further subdivide. When exporting, it is necessary to confirm the destination country's customs code and pay attention to EU CE certification requirements. Surge protective devices (SPD) for low-voltage systems should be classified under which code? Low-voltage surge protective devices (voltage not exceeding 1000 volts) should be classified under 8536; the specific subheading depends on the rated current and structure. If it is of the semiconductor type, it may be classified under 8541. It is recommended to provide detailed technical parameters for accurate classification. In the declaration elements for 853540, how should voltage be filled in? The rated voltage value should be filled in, with the unit indicated (such as kV or V). If it is a wide voltage range, fill in the maximum voltage. It must be clearly stated whether it exceeds 1000 volts, as this is key to classification. For example, "10kV" or "220V". Does the presence of electronic components in a lightning arrester affect classification? If it contains semiconductor active components and its function is overvoltage protection, it may be regarded as a semiconductor device and classified under 8541. However, if its main function is still high-voltage discharge and the voltage exceeds 1000 volts, it is usually still classified under 853540. It is recommended to provide a circuit schematic for customs determination. How to distinguish the boundary between 853540 and 8536? The core difference is voltage: exceeding 1000 volts is classified under 853540, not exceeding 1000 volts under 8536. In addition, 853540 specifically refers to lightning arresters and surge suppressors, while 8536 also includes switches, sockets, fuses, etc. If the goods are high-voltage lightning arresters, even with switching functions, they are still classified under 853540.