Tsurumi LB-480A Automatic Dewatering Pump 2/3 HP
- 63 gpm flow rate
- 0.67 hp, 115 volts, corded electric
- Automatic relay switch with electrodes, one minute run-on
- 32 ft cord
- Urethane impeller, dual silicon carbide seal faces
- 13 x 10 x 8 in, 12.97 kg
- 2-year warranty, UL and CSA certified
Updated 20 days ago · Based on the Amazon listing and published specifications, not hands-on testing.
An automatic dewatering pump for job sites that need hands-off cycling in tight spots, with tough wear parts. Maximum lift height is not listed, so check the pump curve before deep work.
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ASIN: B0035IZBEOModel: LB-480ACategory: Sump Pumps
Overview
Contractors draining excavations and tight job site pits get a submersible dewatering pump that starts itself when water touches its relay electrodes. Once the water clears, it runs briefly and shuts off until the level rises again.
Hands-off operation is the case for it, since the electrode relay starts and stops the pump on its own in tight quarters. Lift height and discharge size are absent from the specs, which matters when sizing a pump for a deep hole.
Who it's for
Suits construction and rental crews that leave a pump in a hole and want it to manage itself. Homeowners after a permanent basement sump should choose a residential sump pump.
Pros and cons
- Starts and stops by electrodes
- Works in tight quarters
- Urethane impeller resists wear
- Silicon carbide seal faces
- Maximum lift height not listed
- Discharge size missing from the details
- Spec sheet wrongly calls it a diaphragm pump
Performance notes
Flow drops as the discharge has to push water higher, so the listed flow is an upper figure at low lift. The top discharge routes water past the motor to cool it, which allows continuous duty and short dry runs, while urethane wear parts handle harsh site conditions.
Specifications
| Brand | Tsurumi Pump |
|---|---|
| Model | LB-480A |
| Dimensions & fit | |
| Item Dimensions L X W X H | 13 x 10 x 8 in |
| Cord length | 32 ft |
| Item weight | 12.97 kg |
| Capacity & performance | |
| Flow Rate | 63 gpm |
| Power & efficiency | |
| Horsepower | 0.67 |
| Power Source | Corded electric |
| Voltage | 115 volts |
| Construction & materials | |
| Material Type | Plastic, metal |
| Color | Blue |
| Included components | |
| Included Components | Pump |
| Unit Count | 1 Count |
| Warranty & support | |
| Manufacturer Warranty Description | 2 years |
| Other details | |
| Switch type | Automatic relay with electrodes |
| Impeller | Urethane impeller and wear plates |
| Mechanical seal | Dual silicon carbide seal faces |
| Certifications | UL, CSA |
| Product Style | Diaphragm |
Frequently asked questions
How does the Tsurumi LB-480A switch on?
Its automatic relay switch turns the pump on when water touches the electrodes at the bottom of the relay. After the water clears, it runs for one more minute and shuts off.
What discharge size does the Tsurumi LB-480A use?
The listing details do not state the discharge size, so confirm it before buying hose.
Can the Tsurumi LB-480A run dry?
It has extended dry-run capability thanks to the top discharge cooling design, but continuous dry running is not claimed.
Is the LB-480A a basement sump pump?
It is sold as a dewatering pump for construction sites where automatic operation is needed.