... series round meter base 100Amps,120~240VAC, Single phase,4 terminal,2 or 3 wire,Fix hub size:1/2",3/4 ... ",1" SYR-100A Series Round meter box description: Item Code No.No ... sizestds packspacking sizeSYR-100A4 2W/3W,1Phase 1S/2S 1003/4"-1” 40 75X39X43CMSYL-100A4 2W/3W,1Phase 1S/2S ... ” 40 75X39X43CM•100Amps,120/240V AC,Single phase,4 terminals,2 or 3 wire Copper Jaw,Copper or ...