Wilo Rexa MINI3 submersible drainage pump for light wastewater
Rexa MINI3 is a submersible pump for lightly contaminated water with a vortex impeller and stainless steel motor housing, used for rainwater and groundwater drainage, dewatering and grey water transfer. The series has 5 single-phase and three-phase models with DN40 connection from 0.5 to 0.75 kW.
- Application
- Rain and groundwater drainage, dewatering, grey water, pre-treated wastewater
- Impeller / free passage
- Vortex impeller, 40 mm
- Materials
- Composite impeller, cast pump housing, AISI 304 motor housing, AISI 316 shaft
- Mechanical seal
- Pump side SiC/SiC, motor side NBR
Models (5)
| Code | Model | Motor power P2 (kW) | Rated current (A) | Power supply | Connection |
|---|---|---|---|---|---|
| 3094002 | Rexa MINI3-V04.09/M | 0.5 | 3.3 | Single-phase 1~230 V | DN40 |
| 3094003 | Rexa MINI3-V04.09/T | 0.5 | 1.3 | Three-phase 3~400 V | DN40 |
| 3094005 | Rexa MINI3-V04.11/M | 0.6 | 4.1 | Single-phase 1~230 V | DN40 |
| 3094006 | Rexa MINI3-V04.11/T | 0.6 | 1.6 | Three-phase 3~400 V | DN40 |
| 3094007 | Rexa MINI3-V04.13/M | 0.75 | 4.7 | Single-phase 1~230 V | DN40 |
Series specifications
| Application | Rain and groundwater drainage, dewatering, grey water, pre-treated wastewater |
|---|---|
| Impeller / free passage | Vortex impeller, 40 mm |
| Materials | Composite impeller, cast pump housing, AISI 304 motor housing, AISI 316 shaft |
| Mechanical seal | Pump side SiC/SiC, motor side NBR |
| Fluid temperature | +3 / +40 °C |
| Electrical | 1~230 V or 3~400 V, 50 Hz · IP68 · insulation F |
| Immersion / duty | Max. 2 m (with 5 m cable) · submerged S1, not submerged S3 15% |
| Installation | Portable or stationary |
Accessories
| Code | Product | Use |
|---|---|---|
| 2083117 | 90° outlet bend | Connects the discharge pipe to the Rexa MINI3 outlet |
| 2851673 | KRV 508 ball check valve, 1½" | Stops pumped water flowing back; ordered separately |
| 2855296 | Xtreme 1M/3-F1 control panel | Panel for direct-on-line pumps |
| 2855295 | Xtreme 2M/3-F2 control panel | Panel for direct-on-line pumps |
| 2855286 | Xtreme 1T/10-F1 control panel | Panel for direct-on-line pumps |
| 2855289 | Xtreme 2T/10-F2 control panel | Panel for direct-on-line pumps |
How to choose
- Supply and float switch: Single-phase (M) models come with float switch and plug and run straight away. Three-phase (T) models have bare cable ends and need a control panel (e.g. Xtreme).
- Duty: V04.09, V04.11 and V04.13 rise in power (0.5 / 0.6 / 0.75 kW); select on the catalogue curve.
- Fluid: For lightly contaminated water with 40 mm free passage. For wastewater with long fibres or sewage look at grinder pumps.
- Check valve: The catalogue asks for a ball check valve to be ordered separately so that pumped water does not flow back.
How to write it in a quote
Write code, model, supply and connection: "Wilo 3094005 Rexa MINI3-V04.11/M submersible drainage pump, 0.6 kW, 1~230 V, with float switch and plug, DN40". Add check valve, outlet bend and, if needed, the panel as separate lines.
FAQ
What water is Rexa MINI3 for?
Rainwater and groundwater drainage, dewatering, grey water transfer and pre-treated wastewater. Fluid temperature must be between +3 and +40 °C.
Is a float switch included?
Single-phase models come with float switch and plug. Three-phase models have bare cable ends; float switch and panel are planned separately.
Can the pump run out of the water?
Out of the water intermittent duty S3 15% is allowed; continuous duty (S1) applies when submerged.
Is a check valve needed?
Yes. The catalogue states that a ball check valve must be ordered separately to stop the pumped fluid flowing back to the pump.
Information compiled from the Wilo product documents. Tekliva does not sell products or publish prices.
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