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![Liberty Pump Switch Kit Model 251-3-B59, 251-5-B59, 251HV-B59, 251HV-2-B59, 231HV-B59, 231HV-2-B59 (K001363)]()
![Liberty Pump Switch Kit Model 251-3-B59, 251-5-B59, 251HV-B59, 251HV-2-B59, 231HV-B59, 231HV-2-B59 (K001363)]()
Description
Liberty Pumps — A Family and Employee Owned Company · Bergen, New York · Since 1965
Model K001363 · Model 331 · Sump Pumps
The Liberty Pumps K001363 is a 1/2 HP switch kit model 251-3-b59, 251-5-b59, 251hv-b59, 251hv-2-b59, 231hv-b59, 231hv-2-b59. This portable pump is perfect for boosting waterpressure, draining hot water tanks and general water transfer. Features include:
Horsepower
1/2 HP
Series
Model 331
Series
Model 331
SSPMA Certified
Certified to SSPMA standards for residential sump pump performance
1/2 HP — Residential Grade
Thermal overload protection — motor automatically resets after cooling, preventing burnout
Authorized Dealer
PumpStop is an authorized Liberty Pumps distributor — full warranty coverage
Expert Support
Technical specialists available — call (781) 281-8905 or chat
Why This Product
Submersible Design — Continuous Basement Protection
Submersible construction allows the pump to operate fully submerged in the sump pit — the correct installation for reliable, automatic basement drainage protection. The motor is oil-filled for heat dissipation and continuous duty rating.
Thermal Overload Protection — Auto Reset
Integral thermal overload protection in the motor windings automatically shuts the pump down if the motor overheats and resets automatically once cooled. Prevents motor burnout from blocked discharge or extended run-dry conditions.
Vortex Impeller — Solids Handling Without Clogging
Vortex-style impeller passes solids without direct impeller contact — the fluid vortex carries solids through without lodging them in the impeller passages. Critical for sump applications where the pit accumulates debris, sand, and particulates.
Quick-Connect Power Cord
Quick-connect cord design allows replacement of the power cord without breaking the motor seal — the most common cause of submersible pump failure is a damaged cord. Field-replaceable cord extends pump service life significantly.
Multiple Switch Styles Available
Available with no switch (manual), wide-angle float, vertical magnetic float, and VMF switch configurations — select the switch type matched to your sump geometry, pit diameter, and automatic operation requirements.
Liberty Pumps — Bergen, New York
Manufactured in Bergen, New York — Liberty Pumps has produced submersible sump pumps in the USA since 1965. Over 50 years of residential and commercial pump experience, with a 3-year limited warranty on most products.
Technical Specifications
| Model Number | K001363 |
| Series | Model 331 |
| Category | Sump Pumps |
| Horsepower | 1/2 HP |
Key Features
General Water Transfer
Draining Water Heaters
Boosting Water Pressure by 40 lbs
C harging Hydronic Floor Systems 55
O ne-piece cast aluminum pump and motor 45 25 housing with integral carry handle 40
Durable epoxy powder coat finish 30 30
20' power cord
Convenient On/Off switch 15 35
3/4" brass garden hose connectors 5 0
Glass reinforced thermoplastic impeller 400 600 800 1000 1200 1400
Permanently lubricated ball bearings
L arge prime plug with internal funnel design Suction Lift for easy priming (In Feet)
Easily replaced motor brushes NOTE: The model 331 is not intended for use in wet
Maximum discharge head of 105' damp areas. Motor is not submersible
Maximum suction lift of 15' Not intended to pump chemicals or flammable liquids. Motor brushes requi
📄 Installation Notes
1/2 hp Portable Transfer Pump Installer: Manual must remain ph: 1-800-543-2550 or contact Liberty Pumps at 1-800-543-2550. Mfg Date:
Important Notices
| Electrical | Requires a properly grounded GFCI receptacle meeting UL 943 requirements. Do not use an extension cord. |
| Fluid compatibility | For use with clean water and gray water only. Not for use with chemicals, flammable fluids, grease, hydrocarbons, sand, cement, or abrasives. |
| Warranty | 3-year Liberty Pumps limited warranty from date of purchase. Warranty voids for use with prohibited substances or field disassembly beyond normal maintenance. |
Available Documentation
✓ Sales Literature / Product Brochure
✓ Installation Manual
Need the installation manual, spec sheet, or product brochure? Contact PumpStop and we'll send it over.
Before You OrderConfirm voltage and switch type are correct for your installation. For sizing and compatibility guidance, chat or call (781) 281-8905.
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