The Telecom 30 Surge Suppressor is great for use on computers, fax, and phones. It gives AC Power plus telecommunication protection with 510 Joule Energy Dissipation. It also provides EMI/RFI Noise Filtration. Rated 15A-120V Ac 1875W Max. Has six protected AC outlets that can withstand a peak surge current of 30,000 amps. Power and ground indicator lights signal protection is functioning.