Grundfos Submersible Multistage Pump - SBA 3-45 A - with float switch and automatic pressure switch – 92713133
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The Grundfos SBA 3-45 A is an all-in-one submersible booster pump for domestic water applications, including rainwater harvesting, pressure boosting, and groundwater transfer. Built on the proven SB platform, it comes with an integrated control unit, eliminating the need for an external pump controller. Silent in operation when submerged, the pump is a noiseless alternative to surface-mounted systems.
The SBA 3-45 A is ideal for wells or ground tanks. It prevents solid particles from entering the pump (maximum particle size 1 mm) and starts automatically when pipe pressure falls below 2.2 bar. Constructed from high-quality composite and stainless steel, the pump is corrosion-resistant and designed for long-lasting performance. Built-in thermal protection ensures safe operation by stopping the pump if it overheats and restarting it automatically once cooled.
Key Specifications:
| Product model | SBA 3-45 A |
| Product number | 92713133 |
| Rated flow | 3 m³/h |
| Rated head | 32.6 m |
| Maximum head | 45 m |
| Impellers | 3 |
| Maximum particle size | 1 mm |
| Pump housing material | Composite (PP-GF30) |
| Impeller material | Composite (PPO-20GF) |
| Inlet connection | Strainer |
| Outlet connection | G 1" |
| Pressure rating | PN 6 |
| Maximum installation depth | 10 m |
| Power input (P1) | 0.9 kW |
| Rated power (P2) | 0.55 kW |
| Rated voltage | 1 × 220–240 V |
| Rated current | 4 A |
| Rated speed | 2800 rpm |
| Enclosure class | X8 |
| Insulation class | F |
| Float switch | Yes |
| Net weight | 13.2 kg |
| Gross weight | 14.2 kg |
Documentation & Downloads:
| Document | Download |
|---|---|
| Grundfos Pumps for Home and Garden – Product Brochure | 📄 Download PDF |
| SB, SBA – Service Kit Catalogue | 📄 Download PDF |