Transfer Switch; Type Automatic, Standard Transition; Voltage Rating 240 Volt AC 60 Hertz 3-Phase; Main Current Rating 100 Amp; Wire Size 14 to 1 AWG; Enclosure NEMA 3R; Height 9 Inch; Width 26.8 Inch; Depth 18.2 Inch; Application Generator; Approval UL, CSA; Material Aluminum (Enclosure); Configuration Type 3-Pole 4-Wire, Solid Neutral; Connection Type No Load Center; Enclosure Type Indoor/Outdoor; Temperature Rating -4 to 158 Deg F (Operating), -40 to 185 Deg F (Storage); Applicable Standard ANSI 49, ISO 9001