Tsurumi LB-A Series Automatic Submersible Portable Drainage Pump – LB-800A
📢 For orders over $100, FREE Shipping Australia-wide
Warranty: Manufacturer’s Warranty
The Tsurumi LB-800A is a single-phase automatic submersible portable drainage pump featuring an electrode-type relay unit that starts and stops the pump based on water level, eliminating dry-run risk and reducing power consumption by up to 40%. Its slim profile fits inside an 8-inch pipe, making it ideal for confined spaces, while the top discharge flow-thru design provides maximum motor cooling for continuous operation at low water levels. The pump includes dual inside mechanical seals with silicon carbide faces, an Oil Lifter for enhanced seal lubrication, an anti-wicking cable entry, and a circle thermal protector (CTP) for overheat and overcurrent protection. This Australian version is rated for 50Hz operation (240V supply) and is well-suited for foundation work, flood response, and general site drainage across Australia and other 50Hz regions.
Suitable Applications
- Foundation dewatering on construction and civil works sites
- Floodwater drainage and emergency water removal
- General site drainage in residential, commercial, and industrial settings
- Site dewatering via narrow shafts or pipe-accessed locations
- Sediment removal from sumps and basins
- Raw water supply from lakes or rivers
Key Specifications
| Product Name | LB-800A |
| Pump Type | Submersible automatic drainage pump with electrode control |
| Discharge Bore | 50 mm (80 mm available on special request) |
| Motor Output | 0.75 kW |
| Phase | Single-phase |
| Starting Method | Capacitor Run |
| Speed | 3000 min⁻¹ (at 50Hz) |
| Solids Passage | 6 mm |
| Shaft Seal | Dual inside mechanical seals (Upper: Ceramic + Carbon; Lower: SiC + Ceramic) with Oil Lifter |
| Liquid Temperature Range | 0 to 40°C |
| Connections | 50 mm Multi-directional Hose Coupling (vertical or inclined) |
| Impeller Material | Urethane rubber (vortex design) |
| Casing Material | Synthetic rubber (see note) |
| Bearing | Deep-groove, double-shielded C3 ball bearings (permanently lubricated) |
| Supply Voltage (Australia) | 240V (50Hz) |
| Rated Current (at 240V 50Hz) | 4.4 A |
| Enclosure Class | IP68 |
| Insulation Class | E |
| Motor Protection | CTP (Circle Thermal Protector) – cuts circuit on overheat or overcurrent |
| Lubricating Oil | Turbine Oil (ISO VG32), 155 ml |
| Shaft Material | 403 Stainless Steel |
| Cable | H07RN-F, 10m, with plug (Australian plug type not specified) |
| Automatic Control | Electrode-type relay unit (extension probes available as optional accessory) |
| Minimum Operating Water Level | 17 cm |
| Dry Weight (excluding cable) | 13.7 kg |
Documentation & Downloads
| Single-phase Portable Pumps Catalogue (LB/HS/HSD/LSC/LSP Series) | Download |
| LB/LB-A Series Product Guide | Download |