3″ DC Plastic Impeller Solar Pump
Engineering note. Maximum head and maximum flow are curve endpoints, not one simultaneous duty point. Final selection is verified against your total head, required flow and solar resource.
- Permanent-magnet brushless motor + intelligent MPPT (auto start/stop, soft-start)
- Controller LED display: voltage / current / power / speed (RPM) / error code
- Oil cooling
- Full protection: over/under-voltage, overload, over-current, dry-run, reverse, over-temp
- Runs directly off PV modules — no batteries required
- Engineering-plastic impeller + SUS304 shaft & sleeve — economy clean-water build
Performance Curves (Q–H)
Head–flow curve of every model in this series — exact data from our engineering datasheets.
Specifications
| # | Model | Voltage (V) | Power (W) | Current (A) | Max flow (m³/h) | Max head (m) | Outlet | Ø (mm) | Length (mm) | Weight (kg) | Recommended cable (mm²) | Recommended PV |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 3PSC3.0-30-24-300 | 24 | 300 | 12.5 | 3 | 30 | 1" | 74 | 745 | 6.3 | 4 | 1 × 400 Wp |
| 2 | 3PSC3.0-45-48-400 | 48 | 400 | 8.3 | 3 | 45 | 1" | 74 | 780 | 6.7 | 2.5 | 2 × 300 Wp |
| 3 | 3PSC6.0-40-72-600 | 72 | 600 | 8.3 | 6 | 40 | 1" | 74 | 840 | 7.5 | 2.5 | 3 × 300 Wp |
| 4 | 3PSC3.5-70-72-600 | 72 | 600 | 8.3 | 3.5 | 70 | 1" | 74 | 840 | 7.5 | 2.5 | 3 × 300 Wp |
| 5 | 3PSC6.5-55-96-750 | 96 | 750 | 7.8 | 6.5 | 55 | 1" | 74 | 890 | 8.2 | 2.5 | 3 × 300 Wp |
| 6 | 3PSC3.5-90-96-750 | 96 | 750 | 7.8 | 3.5 | 90 | 1" | 74 | 890 | 8.2 | 2.5 | 3 × 300 Wp |
| 7 | 3PSC6.5-80-144-1100 | 144 | 1100 | 7.6 | 6.5 | 80 | 1" | 74 | 1000 | 9.6 | 2.5 | 6 × 300 Wp |
| 8 | 3PSC3.5-120-144-1100 | 144 | 1100 | 7.6 | 3.5 | 120 | 1" | 74 | 1000 | 9.6 | 2.5 | 6 × 300 Wp |
| 9 | 3PSC6.5-120-192-1500 | 192 | 1500 | 7.8 | 6.5 | 120 | 1" | 74 | 1130 | 11.3 | 2.5 | 8 × 300 Wp |
| 10 | 3PSC3.5-150-192-1500 | 192 | 1500 | 7.8 | 3.5 | 150 | 1" | 74 | 1130 | 11.3 | 2.5 | 8 × 300 Wp |
| 11 | 3PSC6.5-160-280-2200 | 280 | 2200 | 7.9 | 6.5 | 160 | 1" | 74 | 1355 | 14.2 | 2.5 | 10 × 300 Wp |
| 12 | 3PSC3.5-230-280-2200 | 280 | 2200 | 7.9 | 3.5 | 230 | 1" | 74 | 1355 | 14.2 | 2.5 | 10 × 300 Wp |
Motor & Drive
| Motor | Permanent-magnet DC brushless (PMSM) |
| Drive | Sensorless FOC, pure sine-wave output |
| MPPT tracking | >99% |
| Insulation class | F (155 °C) |
| Duty | S1 (continuous) |
| Ingress protection | IP68 (submersible motor) / IP66 |
| Max immersion | 150 m |
| Warranty | 2 years |
Controller & Protections
| Controller | Sensorless FOC sine-wave vector drive + MPPT (>99%), LED display |
| Display | Voltage, Current, Power, Speed (RPM), Speed adjustment, Error code |
| Controller size | 360 × 260 × 140 mm |
Operating conditions
| Water temperature | 0–40 °C |
| Sand content | ≤ 0.05 % (≤ 500 g/m³) |
| pH range | 5–9 |
| Ambient temperature | -15 to 70 °C |
| Min. borehole | 76 mm |
Materials
- Standard (economy) — SUS304 sleeve + engineering-plastic impeller & diffuser + SUS304 shaft (Best price for clean-water irrigation / domestic supply)
- Corrosion (option) — SUS316 sleeve + plastic impeller (plastic is inherently corrosion-proof)
- Sandy (option) — SUS304 impeller upgrade (plastic wears faster in sand)
Premium components
- 100% copper motor windings
- Class F (155 °C) insulation system
- NSK-grade sealed ball bearings
- SUS304 shaft + engineering-plastic impellers
- Silicon-carbide (SiC) mechanical seal
- Oil-cooled motor
- PMSM + sensorless FOC sine-wave controller, MPPT >99%
Recommended cable
PV-to-controller & motor cable 2.5–4 mm² by model (copper, sized for a ~50 m run; step up one size per additional ~50 m of drop).
Per-model cable cross-section is listed in the specification table above (mm² column).
Certifications
Frequently asked questions
What power and voltage options does the 3″ DC Plastic Impeller Solar Pump come in?
The 3″ DC Plastic Impeller Solar Pump range covers 12 models from 300 W to 2200 W, with system voltages of 24 / 48 / 72 / 96 / 144 / 192 / 280 V.
What maximum head and flow can the 3″ DC Plastic Impeller Solar Pump reach?
Top models reach up to 230 m maximum head and up to 6.5 m³/h maximum flow. These are curve endpoints, not one simultaneous duty point — the exact model is selected against your required head, flow and solar resource.
Does the 3″ DC Plastic Impeller Solar Pump need batteries to run on solar power?
No. It runs directly off PV modules through an MPPT controller (>99% tracking efficiency), so no battery bank is required.
Is the 3″ DC Plastic Impeller Solar Pump protected against dry running?
Yes. Built-in protections include Overload, Over-current, Under-load, Under-voltage, Reverse-connection, Over-temperature (thermal), Dry-run / low-water, Soft-start. The pump motor is rated IP68 (submersible motor) and the controller is rated IP66.
What borehole size does the 3″ DC Plastic Impeller Solar Pump fit, and how deep can it be installed?
It is available in 3″ diameters and fits boreholes of 76 mm minimum inner diameter; the maximum immersion depth is 150 m.
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