The Energy Detective (TED) 5000 system is FCC approved, ETL listed (3185753), and conforms to ANSI/UL STD 916. Certified to Canada STD C22.2 #205.
TED 5000 series is suitable for use only on 120/240 V Single or split-phase 60 Hz services (typical of any North American home).
TED is suitable for electrical services up to 200 Amps, or up to 800 Amps with four parallel 200A feeds (with 4 MTUs). 

TED is suitable for services with maximum 350 MCM conductors.