... Meter Mounting Equipment 1:100A,120/240V AC,Single phase,2 or 3 wires Line and load lugs: ... Product numberDescriptionFixed Hubs SizeMT-100B1 Phase,100A,120/240Vac,4 Jaw1/2"MT-100C1 Phase,100A,120/240Vac,4 Jaw3 ... /4"MT-100D1 Phase,100A,120/240Vac,4 ... Jaw1"MT-100E1 Phase,100A,120/240Vac,4 Jaw1-1/4" Meter Mounting Equipment--100R series ...