A20 Bus Insulators and Bus Bar Insulators

Meister International supplies the highest-quality A20 porcelain bus insulators available. A20 porcelain bus insulators are used by switchgear, power transformer and bus duct manufacturers where reliability and ‘uptime’ is paramount. A20 porcelain bus insulators typically have high mechanical stresses placed on them, and our A20 porcelain bus insulators meet all industry standards

A20 porcelain bus insulators are offered for the following voltage classes:
• 5kv
• 7.2kv
• 15kv/95kv BIL
• 15kv/110kv BIL

A20 porcelain bus insulators are typically used to support copper bus-bars, and are commonly used in high-voltage switching applications. Meister International supplies A20 porcelain bus insulators that have aluminum inserts to for durability and ease of installation.

The design of A20 porcelain bus insulators takes into account both the mechanical and electrical requirements of IEEE, IEC, NEMA and ANSI Standards. Our A20 porcelain bus insulators are cantilever tested and additional testing is performed to ensure our products perform in accordance with the applicable industry standards.

Maintenance of Meister A20 porcelain bus insulators is not required. The glaze coating on the exterior of the insulator keeps dirt and pollutants from adhering. The aluminum inserts are ideal for supporting copper bus-bars without corrosion.

Meister International helps customers avoid long leadtimes by stocking industry standard A20 porcelain bus insulators. Stocking agreements are offered so that your production process can run without interruption. Meister A20 porcelain bus insulators can usually be shipped within 24 hours from receipt of order.

For additional information on Meister International’s products, including A20 bus insulators and bus bar insulators, please contact us by phone at 513.923.2712, or via email at sales@MeisterIntl.com

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Indoor Bus Insulators
Data Sheet

A20 Drawings  
A20-1 5kv
A20-2 7.2kv
A20-3 15kvL
A20-4 15kvH

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