NSI Splicer Reducer, Series: SR Series, Aluminum/Copper Conductor, 6 AWG to 350 kcmil Conductor, 600 VAC, Specifications: 1 Pole, 2 Conductor, 90 deg C, Aluminum, Electro-Tin Plated, 4.19 in L x 1.13 in W x 1.19 in H Dimensions