Not every Cyprus water source is 150 metres deep. Shallow farmland wells across the Famagusta plain, Larnaca coastal belt, and Limassol-Episkopi region typically sit 6 to 18 metres below the surface — and so do most agricultural reservoirs and holding tanks. The Hybsun 4US550-50-4B DC solar sell pump is built for exactly this range. A 550 W solar-powered pump that moves up to 4 m³ of water per hour through a wide 1.25-inch outlet, reaching up to 50 metres of head. Stainless steel impeller and oil cylinder. Runs directly from solar panels — no grid needed, no batteries required. Ships with a free spare parts kit.
✓ VAT included · Delivery in Cyprus
What It Is
The Hybsun 4US range targets a specific application: rural DC solar water pumping at a small-to-moderate scale, no grid connection required.
Shallow rural boreholes, farm wells, off-grid property water sources. Depth range 5 to 50 metres covers most Cyprus rural and residential applications, with flow expressed in cubic metres per hour.
The Hybsun 4US550-50-4B DC solar well pump is the 550 W entry-level model. Peak flow of 4 m³/h near the surface, maximum vertical lift of 50 metres, and a compact 1.25-inch outlet sized for domestic plumbing and small household supply.
Power: a 550 W motor running at 48 V DC, powered by a solar panel array through its matched controller. Sizing the array and picking the right panel string is covered further down the page.
What this means for Cyprus buyers: this pump handles rural boreholes at the residential and homestead depths typical across all districts. Off-grid properties. Rural family homes. Anywhere solar-direct water pumping suits your setup.
Stainless Steel Construction
The Hybsun 4US550-50/4B DC solar well pump is built from stainless steel throughout — a material choice that matters more than most people realise.
Cyprus rural boreholes rarely serve up perfectly clean water. Fine sediment, dissolved minerals, and hard-water compounds show up often. Coastal-adjacent districts like Famagusta and Larnaca can also carry higher chloride from aquifers connected to the sea. On top of the mineral load, irrigation systems bring in dissolved fertiliser salts and organic matter picked up from ponds and holding tanks. Stainless steel copes with all of that without degrading. Plastic impellers (common on budget pumps in this class) wear more quickly against suspended particles. Mixed-metal construction corrodes faster in salty water. Stainless holds up across multiple growing seasons under real Cyprus conditions. The stainless oil cylinder does a second job: it keeps the motor lubrication sealed against water at the pressures a 50 m head pump generates (around 4-5 bar at the rated depth). Standard housings can leak over time with pressure cycling. This one doesn’t.
The Hybsun 4US550-50-4B DC solar well pump uses a 550 W DC motor rated at 48 V. It’s built specifically for running directly from solar panels through the matched controller.
Why this matters: a small solar pump runs many hours daily. The less energy lost between panel and pump, the more water you deliver. Going straight DC-to-DC is the most efficient path for a pump this size — no conversion losses to a household 230 V AC and back again.
The motor sits inside a sealed stainless steel housing, protected against water ingress. It cools itself using the water flowing past — which is why the pump has to stay submerged. Never run it dry (the controller’s dry-run protection handles that automatically if the well level drops).
This is Hybsun’s 4-inch series pump. It slides into boreholes of 4-inch (DN100) diameter or larger — the standard size for Cyprus rural boreholes across every district.
The Hybsun 4US550-50-4B DC solar well pump ships with its matched solar controller — a separate wall-mountable unit that sits between the PV array and the pump itself.
The controller sits between the solar panels and the pump. It takes the DC power coming from the panels, tracks the point that gives the most output (called MPP tracking), and delivers it to the motor.
The Hybsun 4US550-50–4B DC solar well pump controller takes on three main jobs. It extracts the most energy from the panels as sunlight changes throughout the day. It controls 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 comes pre-paired to the Hybsun 4US550-50-4B DC solar well pump.
The simplest way to run a small solar pump is straight-through. Panels produce DC electricity. The motor runs on DC. The controller handles what sits between them. No inverter converting back and forth. No batteries to store energy overnight. No grid connection to pay for.
This suits the Hybsun 4US550-50/4B DC solar well pump Cyprus rural customer well. Water demand generally tracks daylight — irrigation happens by day, livestock drink by day, tanks fill during daylight for use overnight. The pump runs while the sun shines. After dark, the system rests.
Cyprus enjoys one of Europe’s brightest solar climates — between 2,800 and 3,000 sunshine hours annually, delivering roughly 5.5-6 peak sun hours per day on a well-oriented array. Plenty of daily energy for a small rural-scale pump to keep your tank full.
The Hybsun 4US550-50/4B DC solar well pump controller has built-in protection so the system can run unattended. The most important one is dry-run protection: if the well level drops below the pump and water stops flowing, the controller cuts power right away — before anything gets damaged.
This matters especially for Cyprus rural wells that recharge from seasonal rain — a borehole flowing well in spring can start struggling by late summer. Without the safety cutoff, the pump would keep running against a dry intake and destroy bearings and seals in minutes.
The controller also looks after over-voltage and under-voltage cutouts on the panel input (guarding against big voltage swings between hot summer afternoons and cold winter mornings), plus wiring-fault detection at first startup. Between them, these features let the pump run unattended for the whole growing season.
Once the water level recovers after a dry-run stop, the controller retries the pump automatically.
Unboxing & First Look
The Hybsun 4US550-50-4B 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 4US550-50-4B DC solar well pump ships in the same kit format with its model-specific pump.
Who Should Buy This
The Hybsun 4US550-50/4B DC solar well pump is the entry-level solar workhorse for rural single-family properties and small off-grid installations. If your project matches one of these, this is very likely the right pump:
Hybsun makes several other solar pump models suited to different operating profiles. If the Hybsun 4US550-50-4B DC solar well pump doesn’t match your project, one of these siblings probably does:
Hybsun sets the minimum panel array as 1.3 × the pump’s power rating.
For the Hybsun 4US550-50/4B DC solar well pump (a 550 W pump), that’s a minimum of 715 Wp — about 2 standard 400 W panels. Most real-world installs go higher, to 1,200-1,600 Wp (3-4 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 20-25 year service life.
Hybsun publishes flow vs head data for the 4US550-50-4B from 4 m³/h at minimal head down to zero flow at the 50 m H.Max ceiling. The table below shows working flow at standard head intervals, transcribed from the published technical data.
“Total dynamic head” adds up the static water depth, friction losses along the pipes, and the vertical climb up to your storage tank. Friction in the pipework adds around 5-10 metres to the effective head figure — the exact amount depends on pipe diameter, total length, and how many fittings you have.
What the Hybsun 4US550-50-4B DC solar well pump flow envelope translates to for typical Cyprus rural single-family and off-grid applications:
For an exact sizing calculation, send CGP Solar your static water level, daily volume requirement, and target tank or distribution height — we’ll verify the 4US550-50-4B hits your operating point or recommend a better-matched Hybsun model from the range.
Stainless construction. Many budget rural solar pumps use plastic impellers to cut cost. They work — until the water carries sand, organic matter, or dissolved salts.
The Hybsun 4US550-50-4B DC solar water pump is built from stainless steel throughout. Under actual Cyprus conditions — coastal salt exposure, sediment in mineral-rich water, fertiliser residues — that’s what keeps performing through many seasons of use.
Uses off-the-shelf solar gear. The controller’s voltage window is designed for common 400 W solar panels — wired as 1 or 2 panels in series to stay inside the safe voltage range.
Free spare parts kit included. Every Hybsun 4US550-50/4B DC solar well pump ships with a full spares package — the small wear parts (seals, washers, bushings, brushes) that eventually need replacing after years of duty. Saves a separate maintenance order later on.
Automated protection is built into the controller with no user setup required: dry-run shutdown when the well level falls below the pump intake, over-voltage protection on the panel input (covering the voltage variations driven by temperature swings between summer and winter), and error detection for wiring problems at commissioning.
When the water level bounces back after a dry-run cutoff, the controller retries the pump on its own. No manual reset required.
On conventional grid-powered pumps, each start cycle sends a current spike through the motor, shocks the impeller, and speeds up wear on rotating parts.
Solar-direct running sidesteps all of that. The motor accelerates gently as the sun rises and slows as it drops.
Installing a Hybsun 4US550-50/4B DC solar well pump normally takes 2-3 working days from site visit to commissioning. Solar-direct architecture and rural-scale deployment make the install much simpler than a larger hybrid or commercial pump project.
Stage 1 — site visit (1 day). We take the well depth measurement, note the current water level, work out expected drawdown, inspect the borehole diameter and casing state, plan the pipe route up to your tank, and identify a panel spot (rooftop, ground mount, or fence corner) with strong sun exposure across the whole day.
Stage 2 — quote and ordering (3-5 days). We calculate the panel array size against your daily water demand and your budget, specify the pipework, plan the controller mounting position and wiring runs, then confirm pump stock and place the order.
Stage 3 — installation (1 day on site). Lowering the pump into the borehole is around half a day of work. Panel mounting and array install another half a day. Wiring up the controller and commissioning the system takes a few more hours.
CGP Solar handles the whole job across Nicosia, Limassol, Paphos, Larnaca, and the Famagusta region.
CGP Solar supplies and installs the Hybsun 4US550-50-4B across every Cyprus district — for farmland irrigation, greenhouse supply, livestock watering, and tank refill jobs wherever the water sits within reach of the 50 m maximum head.
What CGP Solar takes care of when installing the Hybsun 4US550-50/4B DC solar well pump: the site visit and well measurement, sizing calculations, panel design and mounting, pipework sizing, pump installation into the borehole, controller wiring and startup, plus a handover walkthrough.
Cyprus sunshine + a solar panel array + the Hybsun 4US550-50/4B DC solar well pump = up to 15-22 m³ of water per day from your rural borehole, year after year, with no electricity bill and no fuel cost.
Contact us today to schedule your personalised free consultation.
FAQ’s
Peak flow is 4 m³/h near zero lift and drops steadily as the pump works against depth. At 10 m head: around 3.6 m³/h. At 20 m: around 3.1 m³/h. At 30 m: around 2.6 m³/h. At 40 m: around 1.7 m³/h. At 45 m: around 1.4 m³/h. At the 50 m maximum head: zero flow. Choose the pump against your actual total head (water depth + pipe losses + tank height), not against the peak number on the label.
The Hybsun 4US550-50/4B DC solar well pump is designed to run directly from a solar array through its matched solar controller. The motor takes DC input at 48 V nominal, not 230 V AC mains. For grid-powered pumping at this scale, Hybsun offers separate AC-mains pump models. If your project needs both solar daytime operation and AC backup at night, the Hybsun 4USH1300-125-6F is the closer match.
The matched controller has built-in dry-run protection. If the well draws down past the pump intake and water flow stops, the controller cuts motor power before the wet end can be damaged. It then attempts restart on a timed cycle until water level recovers. Rural Cyprus boreholes are particularly prone to summer drawdown — the protection feature is what makes unattended operation viable through the high-demand season. After a recovery, normal operation resumes automatically.
Standard 2-year manufacturer warranty from Hybsun on the pump itself. The Hybsun 4US550-50/4B 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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