The UA20-527 Indoor Bus Support Insulator is a Class A 20 porcelain insulator designed for rigid support of conducting cables in indoor electrical applications. Engineered to withstand electrical and mechanical stresses while providing maximum resistance to damage.

• Class A 20 porcelain construction for superior electrical insulation
• Galvanized steel fittings for enhanced durability and corrosion resistance
• Critical components like split pins made from pressed steel for reliability
• Designed to withstand electrical and mechanical events

Post insulators provide rigid support for conducting cables while offering maximum resistance to damage from electrical or mechanical events. Horizontal and gain-base line post insulators are often used in applications to avoid the need to install a cross-arm on the pole, making them ideal for indoor electrical distribution systems.

When ordering porcelain insulators, please provide the following specifications:

• Rated voltage, current, and frequency
• Length of oil end and installation method
• Length of cable crossing (critical parameter)
• Length of CT mounting position (critical parameter)
• Environmental pollution level, altitude, and temperature

Custom designs available according to specific user requirements.