53 SERIES AND AS
Spool Insulators are molded from a proprietary blend of gray, track and UV resistant, thermoplastic polymers. They are more durable and reliable than traditional wet-process porcelain insulators.
SHACKLE SPOOL INSULATOR
Shackle insulator: A shackle insulator is an insulator of generally cylindrical form. It has two or more sheds and an axial mounting hole. Through the thread nails, it can be fixed firmly.