Sinexcel Isuna three-phase LV hybrid inverter for properties with a three-phase EAC connection. Five power variants from 5 to 12 kW. Three independent solar inputs, built-in LCD screen, works with most battery brands. For larger homes, villas, agricultural buildings and small commercial sites in Cyprus.
✓ VAT included · Delivery in Cyprus
What It Is
If your EAC meter has a three-phase connection (most Cyprus villas, larger homes, agricultural sites and small commercial buildings do), you need a three-phase inverter. The Sinexcel Isuna Three-Phase LV Hybrid Inverter is built for exactly this. It connects your solar panels, your battery and your home’s electricity into one box — and decides automatically when to use each source.
You can choose from five sizes — 5 kW, 6 kW, 8 kW, 10 kW or 12 kW — depending on how big your home is and how much electricity you use. All five versions look the same on the outside: a slim 175 mm-deep unit with a small screen on the front that shows what’s happening, so you can check your system without opening an app.
Sinexcel has been making power electronics since 2007 — they started by building backup power systems for data centres and hospitals, then brought that experience into home solar. The company is listed on the Shenzhen Stock Exchange (code 300693), so it’s a real established manufacturer, not a small operation.
SiC stands for silicon carbide. It’s the type of electronic chip used inside the inverter. Most inverters use older silicon chips. SiC chips are newer, run cooler, and waste less energy. That’s why this inverter reaches 98.2% efficiency — meaning almost all the energy from your panels actually reaches your home.
In practice, this gives you:
SiC chips cost more than standard chips. That’s why cheaper inverters don’t have them. For a typical 10 kW Cyprus system, the extra efficiency saves you roughly 150–300 kWh every year — money straight back into your pocket on the EAC bill.
Who This Is For
The simple test: check your EAC bill or your meter. If it mentions “three-phase” or you see three live wires going in (not just one), you have a three-phase connection — and you need 3-phase inverter. Three-phase is standard in Cyprus for villas, larger homes and any property running heavy equipment like big air conditioning, pool heaters, fast EV chargers or commercial appliances.
The Sinexcel Isuna Three-Phase LV Hybrid Inverter is built for these types of properties:
Sizing Guide
The right kW depends on your annual electricity consumption and your roof area. As a starting point, match your average monthly EAC bill to the recommended Sinexcel Isuna Single-Phase LV Hybrid Inverter model below — our team will refine the recommendation based on your last 12 months of bills and a site survey.
The solar panel sizes shown assume a 1.5× oversizing of the inverter (which it allows). Your actual panel array depends on your roof direction, available space, the wattage of the panels you choose, and whether you prioritise using your own solar or selling extra back to the grid.
Why It Stands Out
Most hybrid inverters in this price range are pretty basic — one or two solar inputs and a fixed charging speed. The Sinexcel Isuna Three-Phase LV Hybrid Inverter gives you more options on every side. Here’s what actually matters in real life:
Three separate solar inputs — for any roof
Most Cyprus roofs are not perfect — they have different slopes, chimneys, water tanks, parapets or AC units casting shade. With three separate solar inputs (called MPPTs), this inverter lets you connect panels facing three different directions, and each group works on its own. If clouds shade the panels on one side of the house, the panels on the other side still produce at full power. Older inverters have just one or two inputs, so any shade drags down the whole system.
Fast battery charging from the grid
After a long power cut or a few cloudy days, your battery can run low. Some inverters then have to choose: either power your home OR refill the battery. The Sinexcel Isuna Three-Phase LV Hybrid Inverter does both at the same time — pulling up to 24 kW from the EAC grid to run your home AND charge the battery in parallel. A 12 kWh battery that would normally take 4–5 hours to refill is back to full in under 2 hours. Your home is ready for the next outage much faster.
Battery Compatibility
Many hybrid inverters only work with one specific battery brand. That sounds fine — until you discover that brand’s batteries are expensive or hard to find spare parts for. The Sinexcel Isuna Three-Phase LV Hybrid Inverter doesn’t lock you in. The inverter is open: you can use almost any standard home battery that runs at 30–60 volts, from any manufacturer. The three battery types it accepts are:
Lithium iron phosphate batteries — the most common modern home battery chemistry. Long cycle life, stable, safe. Recommended by CGP Solar.
The older traditional type. Cheaper to buy upfront, but heavier, bigger and doesn’t last as long as lithium. Still works well for holiday homes or occasional use.
A brand new type just starting to appear on the market. Uses sodium (basically salt) instead of lithium, so it’s cheaper to make. Future-proof — the Isuna already supports it.
The two independent battery ports allow you to connect different battery banks at the same time.This is rare and useful. If you already have a battery from a previous solar system, you don’t have to throw it away — keep it on one slot and add a new battery to the other slot. The inverter handles both at the same time. You can even mix battery types between the two slots (one old lead-acid, one new lithium) — although for best results, it’s usually better to keep each slot the same type.
For farms, remote villages or areas where power cuts can last days, the Sinexcel Isuna Three-Phase LV Hybrid Inverter has a built-in generator socket. Plug in a diesel or petrol generator and the inverter manages everything automatically: it uses solar first, then the battery, and only starts the generator when both are empty. You don’t flick any switches — the inverter does it for you, and it only uses the generator when it absolutely has to, saving you fuel.
Backup Power
EAC power cuts in Cyprus can last anything from a few minutes (thunderstorm) to several hours (bad weather or maintenance). With the Sinexcel Isuna Three-Phase LV Hybrid Inverter, the switch from grid power to battery power happens in 10 milliseconds — that’s 100 times faster than you can blink. Your laptop keeps working, your Wi-Fi doesn’t drop, your alarm system stays on.
The amount you can run during a power cut depends on two things: how big your inverter is (which sets how many appliances can run at the same time) and how big your battery is (which sets how long they can run for). Pick the inverter size below to see what a typical home can keep running:
Quick rule for power cuts: the inverter size (in kW) sets how much you can run at once — don’t go over this number. The battery size (in kWh) sets how long it lasts. Example: a 13 kWh battery powering an average 2 kW load (lights + fridge + Wi-Fi + a small AC) lasts about 6.5 hours. The same battery powering just 1 kW (no AC) lasts about 13 hours. When you contact CGP Solar, we work out both the inverter and battery size based on exactly which appliances you want to keep running.
5,000 W continuous capacity. Suitable for the lighter end of three-phase properties — small villas, smallholdings. Active load example, summing to roughly 4,200 W:
High-power loads (electric oven, water heater, washing machine) should run individually, not at the same time. The Isuna’s 166–400% overload capability combined with peak surge of 20 kVA for 10 seconds handles motor start-up from refrigerators, ACs and pumps — these typically draw 2–3× their running wattage briefly when the compressor kicks in.
Important notes: All wattages are typical figures sourced from appliance manufacturer specifications. Actual draw varies by appliance brand, age, efficiency rating and operating conditions. Start-up surge for motors (refrigerator compressors, AC, pumps) can be 2–3× the running wattage briefly — handled by the Isuna’s verified 20 kVA peak power for 10 seconds. Older appliances and resistive heating loads (electric ovens, water heaters) draw significantly more than modern inverter-driven equivalents. Battery capacity, not inverter rating, determines how long backup lasts.
6,000 W continuous capacity. A typical mid-size three-phase home. Active-at-once load example, summing to ~5,200 W:
Water heater and AC together exceed 6 kW — the inverter manages this by alternating heavy loads. Most water heaters are thermostat-controlled and only draw power intermittently.
Important notes: All wattages are typical figures sourced from appliance manufacturer specifications. Actual draw varies by appliance brand, age, efficiency rating and operating conditions. Start-up surge for motors (refrigerator compressors, AC, pumps) can be 2–3× the running wattage briefly — handled by the Isuna’s verified 20 kVA peak power for 10 seconds. Older appliances and resistive heating loads (electric ovens, water heaters) draw significantly more than modern inverter-driven equivalents. Battery capacity, not inverter rating, determines how long backup lasts.
8,000 W continuous capacity. The most popular choice for three-phase Cypriot villas. Concurrent load example, ~6,800 W active:
8 kW is the most popular size for three-phase villas in Cyprus. Water heater and microwave/kettle are short-duration loads that the inverter manages by alternation — they do not normally run continuously at the same time as full AC load. Two split ACs plus baseline household loads run continuously without margin issues.
Important notes: All wattages are typical figures sourced from appliance manufacturer specifications. Actual draw varies by appliance brand, age, efficiency rating and operating conditions. Start-up surge for motors (refrigerator compressors, AC, pumps) can be 2–3× the running wattage briefly — handled by the Isuna’s verified 20 kVA peak power for 10 seconds. Older appliances and resistive heating loads (electric ovens, water heaters) draw significantly more than modern inverter-driven equivalents. Battery capacity, not inverter rating, determines how long backup lasts.
10,000 W continuous capacity. Sized for larger villas with pool equipment running. Concurrent load example, ~8,400 W active:
Right size for villa configurations including pool pumps and heat pumps. Three-phase EV charging at 11 kW or 22 kW typically overshoots this capacity — schedule the EV to charge overnight from battery + grid rather than during peak household load.
Important notes: All wattages are typical figures sourced from appliance manufacturer specifications. Actual draw varies by appliance brand, age, efficiency rating and operating conditions. Start-up surge for motors (refrigerator compressors, AC, pumps) can be 2–3× the running wattage briefly — handled by the Isuna’s verified 20 kVA peak power for 10 seconds. Older appliances and resistive heating loads (electric ovens, water heaters) draw significantly more than modern inverter-driven equivalents. Battery capacity, not inverter rating, determines how long backup lasts.
12,000 W continuous capacity. Top of the range — large villas, small commercial. Active load example summing to 8,100–11,400 W with heavy loads staggered:
A three-phase 22 kW EV charger plus electric water heating obviously exceeds 12 kW — these run alternately via scheduling or a load-management contactor. For properties needing more than 12 kW continuously, up to 6 Isuna units run in parallel off-grid mode on a shared battery bank, giving you 72 kW combined.
Important notes: All wattages are typical figures sourced from appliance manufacturer specifications. Actual draw varies by appliance brand, age, efficiency rating and operating conditions. Start-up surge for motors (refrigerator compressors, AC, pumps) can be 2–3× the running wattage briefly — handled by the Isuna’s verified 20 kVA peak power for 10 seconds. Older appliances and resistive heating loads (electric ovens, water heaters) draw significantly more than modern inverter-driven equivalents. Battery capacity, not inverter rating, determines how long backup lasts.
Installation Process
Buying a hybrid inverter is the easy part. Getting it on your wall, connected to your panels and battery, approved by the EAC and producing electricity is what CGP Solar handles end-to-end:
Warranty & Support
The Sinexcel Isuna Three-Phase LV Hybrid Inverter comes with a manufacturer warranty from Sinexcel. The important part: you never have to deal with Sinexcel directly. CGP Solar is your local contact in Cyprus — if something goes wrong, you call us, we sort it out. No shipping anything to China, no language problems, no waiting on emails.
Specific warranty term and any extended warranty options are confirmed in writing on order. Contact us for current details.
Built for Three-Phase Homes in Cyprus
The Sinexcel Isuna Three-Phase LV Hybrid Inverter is engineered for properties with a three-phase EAC connection — typically larger Cyprus homes, villas with pool or heat pump, agricultural sites and small commercial buildings. Three independent MPPTs for any roof shape, two battery ports for old and new battery banks, an on/off-grid switchover in under 10 milliseconds, and a built-in LCD that shows you the system status without an app. SiC technology delivers 98.2% max efficiency across all three phases — efficiency you keep over the system’s entire 20-year-plus lifespan.
Cyprus moved to net billing on 1 January 2026, which makes self-consumption the new path to maximum savings. The Sinexcel Isuna Three-Phase LV Hybrid Inverter is a hybrid inverter from day one, ready for the rules of the current scheme.
Contact CGP Solar today to schedule your personalised consultation and discover how the Sinexcel Isuna Three-Phase LV Hybrid Inverter in Cyprus can transform your home’s energy management.
FAQ’s
No. Cyprus EAC regulations require all grid-connected solar installations to be carried out by certified electrical installers. CGP Solar’s team is certified and handles installation alongside the EAC application paperwork.
Yes. The Sinexcel Isuna three-Phase LV Hybrid Inverter is rated for operation between -25 °C and +60 °C. Output derating begins above +45 °C ambient temperature. The IP65 rating means it can be installed in unshaded outdoor locations if required.
Three easy checks.
1.Look at your EAC bill — three-phase customers usually have a higher fixed monthly charge than single-phase.
2. Look at the main switch in your fuse box — a three-phase main switch has three top terminals and three bottom terminals instead of one of each.
3. If you have an electric oven plus pool pump plus AC running together without tripping anything, you most likely have three-phase. When in doubt, send us a photo of your meter and we’ll confirm in a few minutes.
Most likely yes — the Sinexcel Isuna three-phase LV hybrid inverter is compatible with most lithium-ion (LFP), lead-acid and sodium-ion batteries operating at 30–60 V. Contact us with your existing battery’s voltage and chemistry and we will confirm compatibility before recommending the Isuna.
Less than 45 dB(A). The smart fan only activates above 50% of rated load — below that the inverter operates silently. Quieter than a typical refrigerator or a quiet conversation.
Yes — up to 6 units in parallel in off-grid mode, all sharing the same battery bank, solar array and monitoring. Useful for properties whose loads exceed 12 kW or for phased system expansions.
The inverter unit, mounting bracket, all required cables and connectors, the Wi-Fi/4G dongle for remote monitoring and the user manual. The battery, solar panels and any installation accessories are quoted separately based on your system design.
| Power output | 5kW, 6kW, 8kW, 10kW, 12kW |
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