Insulator may refer to:

Insulator (electricity), a substance that resists electricity

• Pin insulator, a device that isolates a wire from a physical support such as a pin on a utility pole

• Strain insulator, a device that is designed to work in mechanical tension to withstand the pull of a suspended electrical wire or cable

• Mott insulator, a type of electrical insulator

• Topological insulator, a material that behaves as an insulator in its interior while permitting the movement of charges on its boundary

• Insulator (genetics), an element in the genetic code

• Thermal insulation, a material used to resist the flow of heat

• Building insulation, the material used in building construction to prevent heat loss

See also

• Insulation (disambiguation)