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