Round Meter Base Die Cast Aluminum 100Amps, 120/240VAC Single Phase, 4 Terminals, 2 or 3 Wire Hub Size: 3/4", ... are baked on, form a durable, light gray exterior. The current carrying parts are of copper alloy. The ground connector is ... the conductor against a serrated surface. Specification:100Amps, 120/240VACSingle Phase, 4 Terminals, 2 or 3 WireStainless Steel Sealing RingOptional, Sold ...