SYR-100A series round meter base 100Amps,120~240VAC, Single phase,4 terminal,2 or 3 wire,Fix hub size:1/ ... 100 3/4"-1” 40 75X39X43CM•100Amps,120/240V AC,Single phase,4 terminals,2 or 3 wire Copper Jaw,Copper or ... polyester resins,which are baked on.Gray color exterior.•The current carrying parts are made of phosphor copper.•The ground connector ...