Specifications:150 Amps, 3 Pole, Bolt-On, Thermal Magnetic Approval ULMfg Status: Obsolete, Residential/CommercialEF3A150, ETI Magnetic Only 3 Pole circuit breaker, Thoroughly rebuilt and tested. Interrupting Rating 18 Kiloampere At 240 VAC, 14 Kiloampere At 480 VAC, Lug Terminal,, Wire Size 12 To 10 Awg (Aluminum), 14 To 10 Awg (Copper), Size 4 Inch W X 4.56 Inch D X 6.35 Inch H. Sold as New and Reconditioned, specify new or green. Fits older ITE panel boards FC-1. All other ITE obsolete circuit breakers are also in stock. ITE obsolete breaker EF3A150 Sold as Green/Refurbish.