620233 WS50AM-20

The Little Giant 620233 WS50AM-20 is an effluent pump designed for continuous dewatering, water transfer applications or effluent wastewater removal. This pump has a discharge size of 2” (51 mm) and it can handle up to 3/4" solids. It has a 1/2 hp oil-filled motor.

Item: 620233
Model: WS50AM-20


HP 1/2 hp
Frequency 60 Hz
Phase Single-Phase
Amps - Full Load 11.6 A
Amps - Starting 26.9 A
Full Load Watts 950 W
Volts 115 VAC
Cord Length 20 ft
Pump Power Cord Type SJOW
Pump Power Cord Gauge 14-3
Lead Length 20 ft
Motor Type Submersible
Continuous Duty Yes
Thermal Overload Protection Yes
Maximum Flow Rate - 60Hz 90 gpm / 5400 gph
Shut-Off 42 ft
Shut Off Height - 60Hz 42 ft
Max Solid Handling Size 0.75 "
Switch Type Piggyback Mechanical Float
Motor Cooling Oil


Max Fluid Temperature 120 °F

Materials of Construction

Pump Base Material Cast Iron
Pump Body Material Cast Iron
Pump Volute Material Cast Iron
Impeller Type Non-Clog
Impeller Material Cast Iron
Motor Shaft End - Material Stainless Steel
Intake Screen Material Cast Iron Epoxi
Fasteners Material Stainless Steel
Top Bearing Material Steel
Top Bearing Type Ball
Bottom Bearing Material Steel
Bottom Bearing Type Ball Bearing
Seal Material Carbon/Ceramic, Nitrile
Seal Type Carbon/Ceramic/Nitrile


Discharge Thread FNPT
Discharge Type Threaded - FNPT
Discharge 2 "
Product Length 12.25 "
Product Width 9.38 "
Product Height 13.75 "
Pump Length 12.25 "
Product Weight 57 lb
Product Weight w/ Pack 64 lb
Carton Length 12.5 "
Carton Width 9.5 "
Carton Height 20 "
Off Level - Range Adjustable
On Level - Range Adjustable


Accessories Included Piggyback mechanical float comes packaged with the pump (uninstalled).
Electrical Agency Approvals CSA
Standard Warranty 36 Months
  Warranty Terms and Conditions Link