Cutler-Hammer Complete Home Surge Protector (Never taken out of the box!)...Three-way protection for your home (AC Electrical System, Telephone Line, and Coaxial Cable Line)...Electrical System protection covers all appliances, security system, TV/VCR/Tuner, Computers/Printers, and Fax/Answering Machines...120/240 Volt Wire Connection can be mounted to any residential breaker...39,000 Amps per Phase Surge Protection for AC Power...unique Surge Plan Design eliminates differential ground voltages...UL 1449 (2nd Edition), 497A Listed, CSA Certified, ANSI/IEEE C62.41 and C62.45, Tested to ANSI/IEEE, Cat C3 Surges, Rugged NEMA Type 1 steel enclosure. SERIOUS INQUIRIES ONLY. NO SCAMMERS! Call or text anytime .