Switchboard insulators are available in numerous standard heights and shapes. Custom sizes and shapes are also available. Aluminum, brass, and steel inserts are available, per customer specification.
All our insulators are hi-pot tested at 3,000 volts and inspected for short spots, defects, and cracks.
We also offer centerpost insulators and standoff insulators.
Request a quote on switchboard insulators, or contact Cal Fasteners to learn more.