HS Code for Surge arrester

Surge arresters designed for high-voltage systems are classified under HS code 8535.40. This code is part of Chapter 85, which covers electrical machinery and equipment. Heading 8535 is specifically reserved for electrical apparatus for switching or protecting electrical circuits, or for making connections to or in electrical circuits, for a voltage exceeding 1,000 volts. Subheading 8535.40 explicitly includes lightning arresters, voltage limiters, and surge suppressors. These devices are critical infrastructure components used to protect transformers and switchgear from voltage spikes caused by lightning strikes or switching transients. The classification is determined by the rated operating voltage of the device; it must be engineered to handle potentials above 1kV to remain within this heading.

Products Included

• High-voltage lightning arresters
• Station-class surge arresters
• Intermediate-class surge suppressors (>1000V)
• Distribution-class surge arresters for power lines
• Polymer-housed surge limiters for substations

Common Misclassification

The most frequent misclassification occurs with HS code 8536.30, which covers surge suppressors for voltages not exceeding 1,000 volts (such as household power strips or residential surge protectors). It is vital to verify the voltage rating on the technical specification sheet. Additionally, simple fuses are classified under 8535.10, and should not be confused with the active voltage-limiting function of a surge arrester.

FAQ

What is the HS code for surge arrester?

For systems exceeding 1,000 volts, the HS code is 8535.40. For lower voltages, use 8536.30.

Does this include lightning rods?

No, simple lightning rods (passive conductors) are typically classified by their constituent material (e.g., copper or steel) in Chapter 73 or 74, as they are not electrical "apparatus" in the sense of heading 8535.