Glass Surge Arrester Housing Insulator
A glass surge arrester housing insulator is a toughened glass shell used to encase porcelain surge arrester cores in lightning protection systems. It provides external insulation and mechanical protection for the arrester. This product is classified under 8546.10.00 as an electrical insulator made of glass.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the product is imported as a complete surge arrester with the glass housing and internal components
A complete surge arrester for voltage protection is classified under apparatus for protecting electrical circuits, not as a standalone insulator.
If the housing is made of a material other than glass, such as polymer or porcelain
This alternative covers electrical insulators of any material other than glass.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Verify that the glass housing is classified as an insulator, not as a component of a surge arrester (which may fall under heading 8536)
• Provide technical specifications showing the glass shell's insulating function to CBSA
• Check if the surge arrester core is included; if so, the complete article may be classified elsewhere
Related Products under Tariff item 8546.10.00
Aerial Glass Insulator for Cable TV Lines
A glass aerial insulator designed to support and electrically isolate coaxial cables in cable television and broadband distribution networks. Its glass construction provides the necessary dielectric strength and weather resistance for overhead telecommunications infrastructure, qualifying it as an electrical insulator of glass under tariff item 8546.10.00.
Glass Bird Diverter Insulator
A glass bird diverter insulator combines a glass insulator with a bird diverter marker, designed for overhead transmission lines. It provides both electrical isolation and a visual deterrent to prevent avian perching and collisions. This product falls under tariff item 8546.10.00 as it is an electrical insulator made of glass.
Glass Fog-Type Disc Insulator
A fog-type toughened glass disc insulator with an extended creepage distance, designed for overhead power lines in polluted or coastal environments. The glass body provides electrical insulation and resists tracking, making it classifiable as an electrical insulator of glass under tariff item 8546.10.00.
Glass Insulator for Railway Electrification
A glass insulator specifically designed for catenary support structures in railway overhead electrification systems. It provides high mechanical strength and electrical insulation for the power supply lines, qualifying as an electrical insulator of glass under tariff item 8546.10.00.
Glass Post Insulator for Substation Equipment
A solid glass post insulator used to support busbars and equipment in high-voltage substations. Its glass construction provides vertical compression strength and electrical insulation, making it classifiable as an electrical insulator of glass under tariff item 8546.10.00.
Glass Shackle Insulator for Rural Distribution
A glass shackle or egg insulator used in rural low-voltage distribution systems for dead-end strain applications. It provides electrical isolation and mechanical support for anchor poles, qualifying as an electrical insulator of glass under tariff item 8546.10.00.