Grinder Pump, HP 2 hp, Rated Voltage 208/230V AC, Hz 60, Phase - Pumps 3, Amps 10.6 A, Motor Type 3-Phase, Body Material Cast Iron, Impeller Material Stainless Steel, Shaft Seal Material - Pumps Silicon Carbide, Viton, Switch Actuation No Switch Included, Switch Electrical Connection No Switch Included, Flow Rate @ 10 Ft. of Head 50 gpm, Flow Rate @ 15 Ft. of Head 50 gpm, Flow Rate @ 20 Ft. of Head 50 gpm, Flow Rate @ 40 Ft. of Head 48 gpm, Flow Rate @ 60 Ft. of Head 42 gpm, Max. Head 108 ft These general purpose three-phase 200 to 480V sewage grinder pumps have three-phase motors that are more efficient than one phase, and they use a higher voltage that allows for larger motors that require less current than lower-voltage motors. Pumps shred large particles into small fragments so the was.