Insulators in electrical switches are essential components used to isolate and support conductive elements. They play a critical role in switchgear by preventing current leakage and ensuring effective separation between energized parts and grounded or adjacent components.

Insulators are typically made of insulating materials such as ceramics, glass-fiber reinforced plastics, etc. They possess excellent insulation properties, allowing them to operate under harsh conditions such as high voltage and high humidity, ensuring the safety and stable operation of electrical equipment.