Surge protectors come in various types, including metal oxide surge protectors, line-type metal oxide surge protectors, gapless line-type metal oxide surge protectors, fully insulated composite jacket metal oxide surge protectors, and removable surge protectors.

The main types of surge protectors include tube-type surge protectors, valve-type surge protectors, and zinc oxide surge protectors, among others. Each type operates on a different principal, yet their core function remains the same – to safeguard communication cables and equipment from damage.