Eaton Bussmann series power distribution block, 600 Vac, 600 Vdc, 420 A, Three-pole, SCCR: 10 kAIC, Black, Molded Thermoplastic Base, Tin-plated aluminum connector Product specifications Type Power distribution block Amperage Rating 420A Voltage rating 600 Vac, 600 Vdc Material Molded thermoplastic base, tin plated aluminum connector Short-circuit rating SCCR: 10 kAIC Number Of Poles Three-pole Color Black