ILSCO® KUP-L-Tap® Insulation Piercing Connector, Type IPC Dual Rated, Aluminum/Copper Conductor, 4/0 AWG to 350 kcmil Conductor, 5/8 in Bolt, 300 VAC, Specifications: 25 ft-lb Torque, 350 A Copper, 280 A Aluminum, 90 deg C, Copper, Tin Plated, Black, 3-1/4 in H x 2-23/32 in W Dimensions