Description
A borehole for irrigation, livestock or filling a pond, but no power line nearby? The Flocea 600 W solar submersible pump fits boreholes from 100 mm in diameter and pushes water up from the bottom, where a surface pump can no longer draw it. Two photovoltaic panels of about 500 Wp power its MPPT controller, which drives the pump with the sun and protects it against dry running.
What is it for?
Garden boreholes and irrigation
Water a vegetable garden, an orchard or a field from your borehole, without running a power cable or a generator.
Ponds and water storage
Feed a pond or fill a tank during the day: stored water remains available at any time, even without sun.
Livestock and remote sites
Supply a trough in a pasture or the tank of a remote house, far from the grid, with a silent, self-sufficient system.
What makes the difference
MPPT controller included
It gets the best from the panels between 60 and 90 V and starts the pump as soon as there is enough sunlight.
Dry-run protection
Built into the controller: the pump stops if the borehole level drops too far, with no extra probe to buy.
Cable at the right length
Order the cable length that matches the depth of your borehole directly, with bare copper ends ready for the controller terminals.
Technical specifications
| Type | Solar submersible centrifugal pump, stainless steel body |
|---|---|
| Pump diameter | 3″ (about 76 mm) – borehole of at least 100 mm inner diameter recommended |
| Motor | 600 W (0.8 hp) – 48 V DC |
| Maximum flow | 3.8 m³/h, i.e. 3,800 L/h (at zero head) |
| Maximum head | 80 m (at zero flow) |
| Outlet | 1¼″ – 40 mm PE pipe recommended |
| Controller | MPPT, optimal range 60–90 V DC, operating range 30–110 V |
| Input limits | Open-circuit voltage (Voc) < 110 V – 18 A max. |
| Protection | Dry-run protection built into the controller |
| Controller temperature | −15 to +60 °C, install in the shade |
| Recommended panels | 2 × about 500 Wp in series (not included) |
| Cable | Original 2 m, or 10 to 100 m to choose; 4 mm² cross-section; bare copper ends for the controller terminals |
| Pump package | 91 × 22 × 13.4 cm – 19.15 kg (without long cable) |
What flow at your depth?
A submersible pump pushes water upwards: the greater the total dynamic head (TDH), the lower the flow. TDH is simple to estimate: TDH = H1 + H2 + 10% × L, where H1 is the depth of the water level while pumping, H2 the height of the outlet above ground and L the total pipe length.
Example: pump hung at 37 m in a 40 m borehole, pond 35 m away, outlet at ground level. In the worst case, where the water drops down to the pump, TDH ≈ 37 + 0.5 + 10% × 72 ≈ 45 m: the pump still delivers about 1.8 m³/h in full sun. If the water stays 15 m below ground, TDH falls to about 20 m and the flow approaches 3 m³/h.
| Head | Indicative flow |
|---|---|
| 20 m | ≈ 3.0 m³/h |
| 30 m | ≈ 2.6 m³/h |
| 40 m | ≈ 2.1 m³/h |
| 50 m | ≈ 1.5 m³/h |
| 60 m | ≈ 0.85 m³/h |
How many solar panels?
The controller works best between 60 and 90 V and accepts no more than 110 V open circuit. The simplest set-up: two identical panels of about 500 Wp connected in series, about 1,000 Wp for a 600 W pump. Check these four values on the label of each panel:
| Power (Pmax) | 450 to 550 Wp per panel |
|---|---|
| Maximum power voltage (Vmp) | 35 to 44 V: in series, 70 to 88 V |
| Open-circuit voltage (Voc) | 46 V maximum: in series ≤ 92 V, about 104 V at −20 °C |
| Short-circuit current (Isc) | 18 A maximum; common panels are between 12 and 15 A |
Which cable length should I choose?
The pump comes with 2 m of original cable. To connect it to the controller at the surface, choose the total length: installation depth of the pump + distance to the controller + 1 to 2 m of margin, rounded up to the next ten. Example: pump at 37 m, controller 3 m from the borehole → 42 m → 50 m cable. The 2 m option suits you if you already have your own cable and waterproof splice.
A 4 mm² cable for every length
The longer the cable, the more voltage it loses. For 48 V pumps from 400 to 750 W, the minimum cross-section is 2 mm² up to 30 m, 2.5 mm² up to 50 m and 4 mm² up to 100 m between the controller and the pump. We supply 4 mm² cable whatever the length you choose, so you always stay within these recommendations.
| Maximum length | Minimum cross-section |
|---|---|
| ≤ 30 m | 2 mm² |
| ≤ 50 m | 2.5 mm² |
| ≤ 100 m | 4 mm² |
Installation in 5 steps
- Note the inner diameter of the borehole, its depth and, if possible, the pumping water level given by the driller.
- Connect a 40 mm PE delivery pipe to the 1¼″ outlet and hang the pump from a stainless steel rope, never from the cable or the pipe.
- Lower the pump at least 1 to 2 m below the lowest water level, without resting it on the bottom of the borehole.
- Mount the controller in the shade near the borehole head, then connect the pump and the panels with a DC breaker between panels and controller.
- Switch on in the sun and check the flow at the outlet; water can be stored in a tank for use at any time.
Frequently asked questions
What borehole diameter is needed?
The pump is 3 inches, about 76 mm. A borehole with an inner diameter of at least 100 mm is recommended so that the pump, cable and pipe pass without rubbing. A 125 mm borehole is ideal.
How much water per day?
It depends on the head and on sunlight. For example, at 40 m head the pump delivers about 2.1 m³/h in full sun; on a fine summer day that means several cubic metres. Store the water in a tank to use it whenever you want.
Do I need a battery?
No. The pump runs with the sun and stops at night. Storing water is simpler and cheaper than storing electricity. A 48 V battery would run the pump below its optimal range; a 72 V lithium battery would work, but at a much higher cost.
Is the pump protected if the borehole runs dry?
Yes. Dry-run protection is built into the controller: the pump stops if the water level drops too low, with no extra probe.
Are the panels included?
No. Plan two identical panels of about 500 Wp in series, and check their label: Pmax 450–550 Wp, Vmp 35–44 V, Voc ≤ 46 V and Isc ≤ 18 A.
Can I use it in a shallow well?
Yes, if the pump can be fully submerged with a margin below the lowest water level. If the water is less than 7–8 m below the pump position, a solar surface pump may also be suitable.
What is the cross-section of the supplied cable?
4 mm², whatever the length. Between the controller and the pump, the minimum cross-section is 2 mm² up to 30 m, 2.5 mm² up to 50 m and 4 mm² up to 100 m: the supplied cable meets these recommendations from 10 to 100 m.
What is the lead time?
Allow 3 to 4 weeks after your order, depending on the cable length chosen.
Not sure about your installation?
Send us the depth and diameter of your borehole, the water level and the distance to the point of use: we will check the expected flow and the cable length before you order.
Controller user manual
Panel and pump connection, control panel, operating modes, fault codes and settings: the English manual for the DC solar controller of your pump.
- Choosing and wiring the panels
- Operation and protections
- Fault codes and settings
Low-voltage controllers for DC solar pumps from 24 V to 110 V.
