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Ebara Best One MA Stainless Steel Automatic Drainage Pump for Clean Water Transfer with Semi-Open Impeller
Australia-Wide
(08) 9240 2992
Official Ebara
Peace of Mind
Product Overview
Designed for draining flooded basements, cellars and wells, this automatic submersible pump provides reliable domestic dewatering. It is rated for liquid temperatures reaching 50°C and is engineered for permanent or transportable installation in residential sumps. Unattended dewatering is facilitated by the integrated float switch, which manages start and stop cycles based on real-time water levels in pits with minimum dimensions of 400 x 400 mm.
Performance output for the 0.25 kW induction motor includes a maximum flow rate of up to 170 L/Min and a total manometric head of up to 8.3 m. Drawing a rated current of 2.3 Amps on a single-phase 240v supply, the unit delivers reliable hydraulic performance during dewatering tasks. This air-filled 2-pole motor provides reliable submerged operation and is protected by 5 meters of submersible power cable with an integrated 3-pin plug.
The hydraulic configuration utilizes a semi-open centrifugal impeller designed to pass suspended solids reaching up to 10 mm in diameter. This design provides an efficient flow path for clean or slightly dirty water, directing fluid through a 32 mm vertical discharge nozzle. The open-intake strainer facilitates reliable suction while preventing larger debris from entering the internal pump stages during high-volume transfer.
Structural components including the pump casing, impeller, and motor frame are manufactured from 304 stainless steel for corrosion resistance in submerged duty. Sealing is managed by a mechanical seal in an oil-lubricated chamber using Ceramic/Carbon/NBR faces, paired with an upper NBR lip seal. The assembly is built with an AISI 303 stainless steel shaft with a ceramic-coated sleeve and features Class F insulation with an IP68 protection rating for safety.
FEATURES
- Minimum pit dimensions of 400 x 400 mm ensure correct float switch movement and reliable activation.
- Suitable for both permanent installations and portable dewatering tasks in residential settings.
- Maximum immersion depth of 5 meters supports installation in standard domestic sump pits.
- Ceramic/Carbon/NBR sealing materials provide long service life in submerged operation.
- Open-intake strainer prevents large debris from entering the pump stages during transfer.
- NBR lip seal provides secondary protection against moisture ingress at the motor side.
- White mineral oil (Esso Marcol 152) lubricates the mechanical seal chamber.
- 5-meter H07RN-F power cable with molded plug enables immediate connection to standard outlets.
SPECIFICATIONS
| Max Flow | 170 L/Min |
| Max Head | 8.3 m |
| Power | 0.25 kW / 240v |
| Rated Current | 2.3 Amps |
| Suitable For | Basement Drainage |
| Body Material | 304 Stainless Steel |
| Liquid Temperature | Maximum 50°C |
| Outlet Size | 32 mm |
| Warranty | 12 Months |
Warranty & Returns
All products supplied by Foundation Pumps are covered by a minimum 12-month warranty unless otherwise stated. Some brands may offer longer manufacturer warranties. Warranty covers manufacturing defects, faulty materials and workmanship under normal use.
- Products must be installed correctly and in accordance with the manufacturer’s instructions.
- Warranty does not cover incorrect installation, misuse, dry running, normal wear and tear, unauthorised repairs or damage caused by external factors.
- Proof of purchase, photos, videos and installation details may be requested when assessing a warranty claim.
- The customer is responsible for returning the product to Foundation Pumps or the nominated service centre unless otherwise agreed.
- Removal, reinstallation, labour and associated site costs are generally the customer’s responsibility unless required under Australian Consumer Law.
- Change-of-mind returns may be accepted within 30 days provided the product is unused, uninstalled and returned in its original packaging.
- Customers are responsible for return freight costs for change-of-mind returns.
- Restocking fees may apply to special-order, bulky or non-stocked products.
- Used, installed or specially ordered products may not be eligible for change-of-mind returns.
- If a product arrives damaged or faulty, please contact Foundation Pumps as soon as possible so we can assist with the appropriate repair, replacement or refund.
Your rights under Australian Consumer Law are not affected.
What pit dimensions allow the float switch to operate?
Rising sump water activates the float switch on BEST_ONE_MA_304 in pits measuring at least 400 x 400 mm for unattended domestic dewatering.
Which motor supply and electrical current are required?
On single-phase 240 V power, the 0.25 kW motor in BEST ONE MA 304 draws 2.3 Amps and includes overload protection.
What maximum flow supports domestic sump drainage?
Domestic water transfer reaches a maximum flow of 170 L/Min with BEST-ONE-MA-304 through its 32 mm vertical discharge connection during dewatering.
What solids size can the impeller pass?
A semi-open centrifugal impeller in BEST/ONE/MA/304 passes suspended solids up to 10 mm while the intake strainer screens larger debris.
Which immersion and water temperature limits apply?
The AISI 304 stainless steel assembly of BESTONEMA304 carries IP68 protection for immersion up to 5 m and liquid temperatures up to 50°C.
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