Insulators

Cal Fasteners offers insulators for panels, bus bars, and other applications that require safe, reliable electrical insulation. All our electrical insulators are compression molded from a high-strength, glass-reinforced polyester bulk molding compound (BMC). This specialty material meets the requirements for UL891 safety standards and is UL listed 94-VO for flammability.
 
Various heights and thread sizes are available—we specialize in insulators from 3/4" to 3” tall. All insulators are hi-pot tested at 3,000 volts and inspected for cracks, short spots, and defects of any kind.
 
Aluminum inserts are standard; brass or steel inserts are available upon request. Please see individual product listings for full specifications.
 
Custom sizes and shapes are also available to meet your exact specifications—contact us for more information.
 
Request a quote on standard or custom electrical insulators, or contact Cal Fasteners to learn more.