Need more water than a small hobby pump can give you? Maybe your rural family home has above-average demand. Maybe you run a small guesthouse in Troodos, or a boutique hotel on the coast. Maybe two or three neighbouring houses share one borehole. Or maybe you have a small farm on the Nicosia plain.
Whatever the case, the Hybsun 4US750-45-7.5B DC solar well pump is the right size for the job. Bigger than a hobby pump, smaller than an industrial one — and cheaper to run than either. It pumps up to 7.5 m³ of water per hour, lifts water from as deep as 45 metres, and needs only 750 watts of solar power. Made from stainless steel to survive Cyprus water conditions. Powered straight by solar panels — no wiring to the grid, no battery bank to buy. A free spare parts kit is included.
✓ VAT included · Delivery in Cyprus
What It Is
The Hybsun 4US series is designed for a specific bracket: mid-scale rural DC solar water pumping with no grid connection required.
Larger rural family homes, small guesthouses, small hotels, shared rural boreholes, small farms, orchards, greenhouse supply, and small off-grid commercial sources. The depth range of 5 to 45 metres covers most Cyprus rural boreholes across every district, with flow measured in cubic metres per hour.
The Hybsun 4US750-45-7.5B DC solar well pump is the 750 W mid-range model. Maximum flow of 7.5 m³/h close to the surface, top vertical lift of 45 metres, and a 1.25-inch outlet feeding household plumbing, drip irrigation manifolds, or small distribution networks.
Powered by a 750 W motor working at 48 V DC input, fed from a solar panel array via the matched controller. Array sizing and panel string configuration are laid out further down.
What this means for Cyprus buyers: this pump matches boreholes at typical rural depths across every district. Larger family homes. Guesthouses. Small hotels. Shared water supply. Small farms and orchards. Greenhouse operations. Anywhere solar-direct pumping at this scale fits your project.
Stainless Steel Construction
The Hybsun 4US750-45-7.5B DC solar well pump is built from stainless steel throughout — a material choice that shapes the pump’s long-term durability under Cyprus conditions.
Cyprus rural boreholes seldom yield perfectly clean water. Sand, silt, dissolved minerals, and hard-water compounds show up often. In coastal-adjacent zones — Famagusta, Larnaca in particular — chloride levels can climb where aquifers connect to the sea.
On top of the mineral load, irrigation networks introduce dissolved fertiliser salts and organic matter picked up from ponds and storage reservoirs.
Stainless steel copes with all of that without breaking down.
Beyond corrosion resistance, the stainless housing seals the motor internals against the 4-5 bar of pressure this pump generates when operating at rated depth. Cheaper housings tend to seep after years of on-off cycling. Stainless holds its seal.
At the core of the Hybsun 4US750-45-7.5B DC solar well pump sits a 750 W brushless permanent-magnetic synchronous motor designed around a 48 V nominal input. It’s engineered to run straight from a solar panel array via the matched controller.
Why this matters: the Hybsun 4US750-45-7.5B DC solar well pump runs many hours a day. The less energy is lost between the panel and the pump, the more water you get. Going DC-to-DC directly is the most efficient path for a pump this size — no conversion losses to a household 230 V AC and back again.
Inside the Hybsun 4US750-45-7.5B DC solar well pump, the motor lives in a sealed stainless oil cylinder that keeps water out. Cooling for the motor comes from the water it pumps past — meaning the pump has to remain under water any time it’s running. Running it dry would kill it fast, but the controller’s dry-run protection catches that risk automatically if the well level ever drops too low.
A 4-inch series Hybsun pump. It fits inside boreholes of 4-inch (DN100) diameter or larger — the standard size for the vast majority of Cyprus rural boreholes.
Every Hybsun 4US750-45-7.5B DC solar well pump comes packaged with its factory-matched solar controller — a wall-mount box that goes between the panel array and the pump cable running down the borehole.
Electrically, the Hybsun 4US750-45-7.5B DC solar well pump controller sits between the array and the pump cable. It draws DC energy from the panels, continuously tracks the point where their output is peaking (MPP tracking), and passes that energy through to the motor.
The Hybsun 4US750-45-7.5B DC solar well pump controller does three main jobs. It squeezes the most energy out of the panels as sunlight changes through the day. It regulates the motor speed. And it shuts the pump down if the well runs dry, so nothing gets damaged. It mounts at the wellhead or in a small enclosure nearby.
The controller arrives already configured to match the Hybsun 4US750-45-7.5B DC solar well pump.
The most efficient way to run a small solar pump is straight-through. Panels generate DC. The motor accepts DC directly. The controller handles the interface between them. No inverter converting in either direction. No batteries to store energy overnight. No grid connection to pay for.
This suits the Hybsun 4US750-45-7.5B DC solar well pump in Cyprus farming context. Water demand mostly follows daylight — crops get irrigated by day, livestock drink by day, and tanks fill up during the day for use at night. The pump runs while the sun shines. After dark, the system rests.
Soft start (no inrush damage to the motor), over-voltage, under-voltage, over-current, high-temperature and adjustable speed (frequency conversion). For wells that occasionally run dry, the auto-restart is particularly useful — the pump checks again 30 minutes later instead of needing a manual reset.
Unboxing & First Look
The Hybsun 4US750-45-7.5B DC solar well pump kit is in a wooden box with the pump, the DC solar controller, and accessories. Here’s an unboxing walkthrough showing what’s in the box and how the kit goes together:
Video by Hybsun showing the standard submersible solar well pump kit. The Hybsun 4US750-45-7.5B DC solar well pump ships in the same kit format with its model-specific pump.
Who Should Buy This
The Hybsun 4US750-45-7.5B DC solar well pump covers a wide bracket of Cyprus buyers. If any of these fits your project, this is very likely the right pump:
Hybsun makes several other solar pump models suited to different operating profiles. If the Hybsun 6US1500-20-42E DC solar well pump doesn’t match your project, one of these siblings probably does:
Hybsun specifies the minimum array as 1.3 times the pump’s rated power.
For the 4US750-45/7.5B (a 750 W pump), that’s a minimum of 975 Wp — about 3 standard 400 W panels. Most real-world installs go higher, to 1,600-2,000 Wp (4-5 panels). The extra headroom covers summer heat losses (panels de-rate 10-15% in high heat), dust buildup between cleanings, and gradual panel aging over the 25-30 year service life.
Working flow figures run from 7.5 m³/h near zero lift down to zero flow at the 45 m H.Max ceiling. The table below sets out the actual flow you get at typical operating depths — every number read straight from Hybsun’s published data.
“Total dynamic head” is the sum of static water level depth, pipe friction losses, and vertical climb up to your discharge tank. Friction along the rising main normally adds 5-10 metres to the effective head — the actual figure varies with pipe diameter, run length, and fitting count.
What that flow envelope translates into for typical Cyprus agricultural and surface-water applications:
For a precise sizing check, share with CGP Solar your static water level, daily volume required, and target tank height or distribution point — we’ll confirm the Hybsun 4US750-45-7.5B DC solar well pump lands on your operating point, or point you at a different Hybsun model if a better fit exists.
A lot of pumps this size have plastic impellers to keep the price down. They work fine for a while. But once your water starts carrying a bit of sand, some plant material, or the slight saltiness you get from coastal-adjacent wells, plastic parts wear out fast.
The Hybsun 4US750-45-7.5B DC solar well pump is stainless steel all the way through. Cyprus water is tough on pumps — mineral-heavy inland, sometimes salty near the coast, often carrying fertiliser residue near farmland. Stainless steel pumps work year after year.
Spare parts kit included in the box. Open the box and you’ll find a small bag with seals, washers, bushings, and brushes. All the little parts that eventually wear out — years down the road. Put them on the workshop shelf. When you finally need one, it’s already there.
The controller looks after the pump on its own. If the well runs dry, it shuts the pump off before any damage. If the panels put out too much voltage on a cold morning, it cuts off then too. And if something’s wired wrong at startup, it catches that before power reaches the motor.
When water comes back after a dry spell, the pump just starts up again by itself.
Every time a normal mains-powered pump switches on, it takes a big surge of electricity. That surge is hard on the motor and the impeller. It’s one of the main reasons cheap grid pumps burn out after a few years.
Solar-powered pumps don’t work that way. The motor speeds up gently as the sun rises, and slows down gently as it sets. Just smooth running from morning until evening. It’s the same reason old engines lasted a lifetime when they were treated gently — no sudden starts means less wear.
Cyprus wells vary a lot from district to district. Some recover quickly after winter rains. Others take their time. Either way, by August or September the water level often drops — especially if you’re irrigating hard through summer.
If the water drops below the pump, a normal pump would burn out within minutes (motors need water flowing past them to stay cool). This one won’t. The controller notices straight away when water stops flowing and shuts the pump down. Then it waits a few minutes and tries again. And keeps trying until water comes back.
A Hybsun 4US750-45-7.5B DC solar well pump install normally runs 2-3 working days end to end. Simple solar-direct wiring and modest deployment depth make this a much faster job than a larger hybrid or commercial pump project.
Stage 1 — site visit (1 day). We measure well depth and water level, estimate likely drawdown, check the borehole diameter and casing condition, map the pipe run up to your tank, and choose a panel mounting location (ground mount, rooftop, or fence line) with strong day-long sun.
Stage 2 — quote and ordering (3-5 days). We work out the array size against your daily water demand and available budget, spec the pipes, design the controller mounting and wiring layout, then verify pump stock and place the order.
Stage 3 — installation (1-2 days on site). Dropping the pump into the borehole is roughly half a day of work. Panel mounting and array installation runs from half a day to a full day, scaling with array size. Wiring the controller and commissioning the whole system takes a couple of hours.
CGP Solar handles the whole job across Nicosia, Limassol, Paphos, Larnaca, and the Famagusta region.
CGP Solar supplies and installs the Hybsun 4US750-45-7.5B DC solar well pump in every Cyprus district — for small vegetable plots, half-hectare orchards, small greenhouse operations, and small livestock setups wherever the borehole sits within the 45 m maximum head.
What we handle for you: site visit and well measurement, sizing calculations, panel array design and mounting, pipe sizing, pump installation, controller wiring and startup, plus a handover walkthrough.
Cyprus is one of the sunniest countries in Europe. Combine that with a modest solar array and the Hybsun 4US750-45/7.5B DC solar well pump, and you get 30 to 40 m³ of water every day from your rural well — year after year, with zero electricity bill and zero fuel cost.
Contact us today to schedule your personalised free consultation.
FAQ’s
Hybsun 4US750-45-7.5B DC solar well pump’s Peak flow is 7.5 m³/h near zero lift and falls off as the pump lifts against more head. At 10 m head: around 6.4 m³/h. At 20 m: around 5 m³/h. At 30 m: around 4 m³/h. At 40 m: around 2.4 m³/h. At the 45 m maximum head: zero flow. Size the pump against your real total head (water depth + pipe losses + tank height), not against the maximum number on the label.
The Hybsun 4US750-45-7.5B DC solar well pump is a solar-only model. It gets its power straight from solar panels through the controller it comes with. You can’t plug it into a normal 230 V wall socket. If you need a grid-powered pump instead, Hybsun makes different models for that. If you want to use solar during the day and switch to grid power at night or on cloudy days, take a look at the Hybsun 4USH1300-125-6F is the closer match.
The controller comes with dry-run protection as standard. If the water level in your well drops below the pump and water stops flowing, the controller cuts power to the motor right away — before anything gets damaged. It waits a bit, then tries again. It keeps trying until water comes back. Cyprus wells often draw down when demand peaks in July and August. This protection is what lets the pump sit there running all summer without you needing to watch it. When the water level recovers, the pump picks back up on its own.
Standard 2-year manufacturer warranty from Hybsun on the pump itself. The Hybsun 4US750-45-7.5B DC solar well pump carries CE conformity for EU/Cyprus sale, and Hybsun’s manufacturing facility holds ISO 9001:2015 certification. The DC hybrid controller is IP65-rated — dust-tight and pressurized-water-jet protected — appropriate for outdoor mounting at exposed mountain wellhead locations, or inside a pump shed at agricultural and resort sites.
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