... packspacking sizeMT-100R-B4 2W/3W,1Phase 1S/2S 100 1/2" 40 74X38X42CMMT-100R-C4 2W/3W,1Phase 1S ... /2S 100 3/4" 40 74X38X42CMMT-100R-D4 2W/3W,1Phase 1S/2S ... 74X38X42CM•100Amps,120/240V AC,Single phase,4 terminals,2 or 3 wire Copper Jaw,Copper or aluminum connector• ... serrated surface.Stainless steel sealing ringFix hub size:1/2,3/4,1,1-1/4 for option• 100A ...