Use in places where surge protection, spike protection, and noise elimination is critical—ideal for use with electronics, LAN networks, and file servers. The “lifetime connected-equipment warranty” means your connected equipment will be repaired or replaced if damaged by a surge or spike, even if caused by lightning. These suppressors feature sine-wave tracking and three-stage protection to ensure proper performance of your equipment. All models feature three diagnostic LEDs, one for protection present, one for fault, and one for line ok; a master ON/OFF switch; a 12-amp circuit breaker; aluminum housing; safety covers; and keyholes for easy mounting. All models meet UL standards 1449,1283, and 1363.