Vintage Brown Porcelain Spool Insulator

Description :
This is a vintage brown-glazed porcelain spool insulator, measuring approximately 4" in diameter by 4" in height. Spool insulators like this were commonly used in mid-20th-century power distribution, often mounted on crossarms or walls to secure and insulate electrical wires. The tiered "shed" design increases surface distance to reduce electrical leakage and improve performance in wet or dusty environments. Its robust ceramic construction and weather-resistant glaze have helped it survive decades of outdoor service. Today, these are popular among collectors of electrical memorabilia and can also be repurposed for rustic or industrial décor projects.

Era
Mid-20th century

Style
Industrial Utility

Technique
Slip-cast porcelain fired at high temperatures, finished with a brown mottled glaze

Tools Used
Casting molds, high-temperature kiln, glazing sprayer

History
Spool insulators were a workhorse component of early electric distribution systems, designed for durability and adaptability in both urban and rural infrastructure.

Manufacturer / Maker
Maker: Unknown (likely Ohio, Pennsylvania, or New Jersey-based porcelain works)

Suggested Weight
~2.5 lbs

Item Number : P14226

Category : Electrical

Brand : UK