Spec Sheet

One-Piece Cast

Motor Housing

Quick-connect

Power Cord

280-SERIES

Cast Iron Submersible Sump/Efﬂuent Pump

• Liberty Pumps unique, one-piece

“Uni-Body” casting

• Quick-connect 10' standard

power cord allows replacement of

cord in seconds without breaking

seals to motor (other lengths available)

• Permanently lubricated upper

and lower bearings

• Oil-ﬁlled, hermetically sealed motor

with thermal overload protection

• Stainless-steel removable bottom screen

• Stainless-steel rotor shaft

• Stainless-steel fasteners

280 Manual

281 Wide-Angle Float Switch with Quick-connect

283 Wide-Angle Float Switch, Series Plug

287 Vertical Magnetic Float (VMF) Switch for

heavy-duty sump pump applications

280HV Manual

281HV Wide-Angle Float Switch with Quick-connect

283HV Wide-Angle Float Switch, Series Plug

287HV Vertical Magnetic Float (VMF) Switch

1/2 hp

1-1/2" Discharge

3/4" Solids Handling

Features

115V Models

208–230V Models

Wide-angle ﬂoat switches are mercury-free,

mechanically activated.

Model 283

Available with

Vertical Magnetic

Float Switch

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280-SERIES Cast Iron Submersible Sump/Effluent Pump 1/2 hp 1-1/2" Discharge 3/4" Solids Handling Quick-connect Power Cord Features • Liberty Pumps unique, one-piece “Uni-Body” casting •Q uick-connect 10' standard power cord allows replacement of cord in seconds without breaking seals to motor (other lengths available) One-Piece Cast Motor Housing •P ermanently lubricated upper and lower bearings •O il-filled, hermetically sealed motor with thermal overload protection • Stainless-steel removable
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80-Series Impeller Bearings Vortex style engineered polymer Upper and lower ball bearings Paint Minimum Sump Diameters Powder coat Models 281, 283 Model 287 Max Fluid Temperature 14" 10" FACTORY SWITCH SETTINGS 140°F (60°C) Intermittent 104°F (40°C) Continuous duty MODELS 281 & 283 MODEL 287 13" 7" 9.5" 4" Turn on level Turn off level Motor Specifications The Model 283 features a fully adjustable wide-angle float switch.