What surge protector is right for me? Each type of surge protector focuses on a particular type of wiring... Each type of surge protector focuses on a particular type of wiring: electrical, telephone or coaxial cable. There are two AC power surge protectors, allowing you protection regardless of the brand of load center in your home. Ask your local D.L. Smith what type of protection is right for you and your home. Note: While surge protectors will protect against surges generated when lightning strikes nearby, no surge arrester can guard against a direct hit. The energy is too great.