Ebara Optima MS Stainless Steel Domestic Sump Pump Submersible Centrifugal – 175210-6700
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The Ebara Optima MS is a single-phase, automatic submersible centrifugal pump designed for domestic sump and drainage applications requiring a magnetic switch. Constructed with a robust AISI 304 stainless steel pump casing, outer casing, and strainer, this unit features a semi-open impeller made of thermo plastic for durability. It is equipped with a carbon/ceramic mechanical seal in an oil bath with an upper lip seal for enhanced longevity, a built-in capacitor, and thermal overload protection. The automatic model (MS) includes a magnetic switch for clean water applications where a float switch is not suitable, and the pump is supplied with a 5-meter power cable and moulded 3-pin plug.
Suitable Applications
- Domestic sump drainage (wells, cellars, basements, garages)
- Groundwater removal and dewatering
- Emptying tanks, drums, and reservoirs
- Rainwater harvesting transfer
- General transfer of clean water (magnetic switch version for clean water only)
Key Specifications
| Product Name | Optima MS |
| Product Number | 175210-6700 |
| Pump Type | Submersible Centrifugal (Semi-open impeller) |
| Discharge Size | 32 mm (G1¼") |
| Motor Power (P2) | 0.25 kW (0.33 HP) |
| Voltage | 230V |
| Phase | Single phase (1 ph) |
| Cable Length | 5 m (with moulded 3-pin plug) |
| Maximum Head | 7.6 m |
| Speed (Pump Data) | ~2800 rpm (2-pole motor) |
| Stages / Impellers | 1 |
| Shaft Seal | Carbon/Ceramic/NBR Mechanical seal in oil bath, with upper lip seal |
| Liquid Temperature Range | 0°C to 50°C |
| Maximum Immersion Depth | 5 m |
| Connections | Suction: Strainer; Discharge: G1¼" (UNI ISO 228) |
| Base / Head Material | Pump casing, Outer casing, Strainer: AISI 304 Stainless Steel |
| Impeller Material | Thermo Plastic (Semi-open) |
| Bearing | Sealed ball bearings (Upper: 6000 ZZ C3, Lower: 6200 ZZ C3) |
| Rated Current | 1.9 A (Full load) |
| Enclosure Class | IP68 |
| Insulation Class | F |
| Switch Type | Magnetic switch (automatic, for clean water only) |
| Packing Size (W x D x H) | 22 x 19 x 33 cm |
| Shipping Weight | 6 kg |
| Approvals | CE |
Performance Data
| Capacity (L/min) | 0 | 20 | 40 | 60 | 80 | 100 | 120 |
| Capacity (m³/h) | 0 | 1.2 | 2.4 | 3.6 | 4.8 | 6.0 | 7.2 |
| Total Head (m) | 7.6 | 7.0 | 6.3 | 5.4 | 4.3 | 3.1 | 1.5 |
Documentation & Downloads
| Ebara Optima – Data Sheet | Download |
| Ebara Optima – Technical Data | Download |
| Ebara Optima/Best/Right-DW – Instruction Manual (Part 2) | Download |
| Ebara General Instruction Manual (Part 1) | Download |