DCSubmersible Pump4″ · 6″

4″–6″ DC Brushless Stainless Steel Impeller Solar Pump

Name: 4″–6″ DC Brushless Stainless Steel Impeller Solar Pump
Brand: Aquasolar

260 mMax head

40 m³/hMax flow

300–3000 WPower range

3 yrWarranty

✓ 3-yr Warranty✓ 70+ countries✓ 15+ years experience✓ CE · RoHS · ISO

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.

↓ Datasheet (PDF)Get a Quote

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
All-stainless SUS304 wetted parts (SUS316 optional for corrosive / coastal water)

Performance Curves (Q–H)

Head–flow curve of every model in this series — exact data from our engineering datasheets.

Hover or tap a curve / model code to inspect it

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	4PPSS3.0-30-24-300	24	300	12.5	3	30	2"	98	770	8.9	4	1 × 400 Wp
2	4PPSS3.0-50-48-400	48	400	8.3	3	50	2"	98	790	9.5	2.5	2 × 300 Wp
3	4PPSS7.0-40-72-600	72	600	8.3	7	40	2"	98	840	10.8	2.5	3 × 300 Wp
4	4PPSS5.5-50-72-600	72	600	8.3	5.5	50	2"	98	840	10.8	2.5	3 × 300 Wp
5	4PPSS3.0-80-72-600	72	600	8.3	3	80	2"	98	840	10.8	2.5	3 × 300 Wp
6	4PPSS15.0-30-96-750	96	750	7.8	15	30	2"	98	870	11.7	2.5	3 × 300 Wp
7	4PPSS8.0-50-96-750	96	750	7.8	8	50	2"	98	870	11.7	2.5	3 × 300 Wp
8	4PPSS5.5-70-96-750	96	750	7.8	5.5	70	2"	98	870	11.7	2.5	3 × 300 Wp
9	4PPSS3.0-100-96-750	96	750	7.8	3	100	2"	98	870	11.7	2.5	3 × 300 Wp
10	4PPSS15.0-45-144-1100	144	1100	7.6	15	45	2"	98	955	13.9	2.5	6 × 300 Wp
11	4PPSS8.0-80-144-1100	144	1100	7.6	8	80	2"	98	955	13.9	2.5	6 × 300 Wp
12	4PPSS5.5-100-144-1100	144	1100	7.6	5.5	100	2"	98	955	13.9	2.5	6 × 300 Wp
13	4PPSS3.0-140-144-1100	144	1100	7.6	3	140	2"	98	955	13.9	2.5	6 × 300 Wp
14	6PPSS25.0-30-192-1500	192	1500	7.8	25	30	3"	144	1170	29	2.5	8 × 300 Wp
15	4PPSS21.0-35-192-1500	192	1500	7.8	21	35	2"	98	1045	16.4	2.5	8 × 300 Wp
16	4PPSS16.0-70-192-1500	192	1500	7.8	16	70	2"	98	1045	16.4	2.5	8 × 300 Wp
17	4PPSS9.0-100-192-1500	192	1500	7.8	9	100	2"	98	1045	16.4	2.5	8 × 300 Wp
18	4PPSS6.0-130-192-1500	192	1500	7.8	6	130	2"	98	1045	16.4	2.5	8 × 300 Wp
19	4PPSS3.0-170-192-1500	192	1500	7.8	3	170	2"	98	1045	16.4	2.5	8 × 300 Wp
20	6PPSS25.0-45-280-2200	280	2200	7.9	25	45	3"	144	1295	35.1	2.5	10 × 300 Wp
21	4PPSS23.0-55-280-2200	280	2200	7.9	23	55	2"	98	1205	20.9	2.5	10 × 300 Wp
22	4PPSS17.0-100-280-2200	280	2200	7.9	17	100	2"	98	1205	20.9	2.5	10 × 300 Wp
23	4PPSS9.0-140-280-2200	280	2200	7.9	9	140	2"	98	1205	20.9	2.5	10 × 300 Wp
24	4PPSS6.0-190-280-2200	280	2200	7.9	6	190	2"	98	1205	20.9	2.5	10 × 300 Wp
25	4PPSS3.5-260-280-2200	280	2200	7.9	3.5	260	2"	98	1205	20.9	2.5	10 × 300 Wp
26	6PPSS40.0-30-385-3000	385	3000	7.8	40	30	3"	144	1440	42.1	2.5	13 × 300 Wp
27	4PPSS28.0-55-385-3000	385	3000	7.8	28	55	2"	98	1390	25.9	2.5	13 × 300 Wp
28	6PPSS30.0-55-385-3000	385	3000	7.8	30	55	3"	144	1440	42.1	2.5	13 × 300 Wp
29	4PPSS23.0-65-385-3000	385	3000	7.8	23	65	2"	98	1390	25.9	2.5	13 × 300 Wp
30	4PPSS17.0-130-385-3000	385	3000	7.8	17	130	2"	98	1390	25.9	2.5	13 × 300 Wp
31	4PPSS9.5-180-385-3000	385	3000	7.8	9.5	180	2"	98	1390	25.9	2.5	13 × 300 Wp
32	4PPSS6.5-260-385-3000	385	3000	7.8	6.5	260	2"	98	1390	25.9	2.5	13 × 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	3 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

Protections

OverloadOver-currentUnder-loadUnder-voltageReverse-connectionOver-temperature (thermal)Dry-run / low-waterSoft-start

Remote monitoring (optional): Optional 4G/GSM or Wi-Fi monitoring module — remote flow, water level, energy and fault alerts with OTA updates (add-on; the standard controller uses a local LED display).

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	100–150 mm

Materials

Standard — SUS304 impeller, diffuser, sleeve & shaft (All-stainless wetted parts — flagship durable line)
Corrosion (option) — SUS316 wetted parts

Premium components

100% copper motor windings
Class F (155 °C) insulation system
NSK-grade sealed ball bearings
SUS304 shaft & impellers (SUS316 optional)
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

RoHSCBTUVSGSISO 9001ISO 14001

Standards

IEC 62253 (PV pumping systems)IEC 60034 (rotating machines)IEC 60529 (enclosure / IP)

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Frequently asked questions

What power and voltage options does the 4″–6″ DC Brushless Stainless Steel Impeller Solar Pump come in?

The 4″–6″ DC Brushless Stainless Steel Impeller Solar Pump range covers 32 models from 300 W to 3000 W, with system voltages of 24 / 48 / 72 / 96 / 144 / 192 / 280 / 385 V.

What maximum head and flow can the 4″–6″ DC Brushless Stainless Steel Impeller Solar Pump reach?

Top models reach up to 260 m maximum head and up to 40 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 4″–6″ DC Brushless Stainless Steel 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 4″–6″ DC Brushless Stainless Steel 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 4″–6″ DC Brushless Stainless Steel Impeller Solar Pump fit, and how deep can it be installed?

It is available in 4″ / 6″ diameters and fits boreholes of 100–150 mm minimum inner diameter; the maximum immersion depth is 150 m.

Submersible Pump

Q-H

DCSubmersible Pump