Growatt MAX 120KTL3-X LV – 120 kW on-grid inverter

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Growatt MAX 120KTL3-X LV – on-grid inverter 120 kW

Growatt MAX 120KTL3-X LV is an on-grid inverter rated at 120 kW, available at Growatt.tech. It is a high-efficiency on-grid (grid-tied) inverter without energy storage support. The inverter comes with online monitoring and an IP65 enclosure for indoor and outdoor installation.

Growatt MAX 120KTL3-X LV combines proven Growatt electronics with straightforward operation — once connected to the ShinePhone app, it gives you full control over the PV installation. This product page gathers the complete information on the MAX 120KTL3-X LV model: how it works, how to size it, the compatible accessories and the full technical specification from the manufacturer’s datasheet. All parameters come from official Growatt documentation — we list them to make selection easier and to help you avoid costly mistakes at the design stage. If any questions remain after reading, our technical team will gladly help you select the inverter and the remaining components of the PV installation free of charge.

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How the Growatt MAX 120KTL3-X LV works

Growatt MAX 120KTL3-X LV is a high-power three-phase on-grid (grid-tied) inverter. It feeds all PV energy to the grid and the installation, maximising self-consumption. It does not support energy storage.

Growatt MAX 120KTL3-X LV has 8 independent MPPT trackers, which lets you connect strings of different orientations and lengths and maintain a high yield even with partial roof shading. You follow the installation in real time in the ShinePhone app and the ShineServer portal — with fault alarms and production history.

Cui se adresează acest invertor

• Commercial and agricultural installations focused on self-consumption.
• Businesses with high daytime energy consumption.
• PV farms and larger roofs — multiple independent MPPT trackers.
• Installers looking for a reliable three-phase platform.

Caracteristici și funcții principale

• 8 independent MPPT trackers — flexible string sizing and better yield under partial shading.
• Fuse-free design (no DC fuses)
• String-level monitoring
• IP65 enclosure — indoor and outdoor installation.
• Monitorizare online — aplicația ShinePhone și portalul ShineServer prin Wi-Fi.

Sizing and installation design

The power rating of the Growatt MAX 120KTL3-X LV inverter is matched to the installed panel power — on the DC side a slight oversizing is usually applied (a DC/AC ratio just above 1) to make better use of the yield outside peak hours and in months with weaker sunlight. The number and length of the strings are planned around the number of MPPT trackers and the operating voltages given in the manufacturer’s datasheet — this way the inverter starts early in the morning and keeps working until dusk.

In larger installations it is worth splitting the modules into several independent strings of similar orientation to limit the impact of shading and uneven irradiance across the roof. Correct configuration translates directly into annual energy yield and a faster return on investment. If you are not sure how many panels to connect to the Growatt MAX 120KTL3-X LV inverter and how to distribute them across the trackers, send us your design or module list — we will verify the selection free of charge before purchase and propose the optimal configuration (info@growatt.tech).

Self-consumption and savings with the Growatt MAX 120KTL3-X LV

With a grid-tied inverter, self-consumption is key — the more energy you use as it is produced, the lower your bills. Growatt MAX 120KTL3-X LV keeps the PV yield at its maximum, and you can track production and consumption in the ShinePhone app. If you plan to add energy storage, consider a hybrid version — we are happy to advise.

MAX 120KTL3-X LV parameters in practice

A wide MPPT operating voltage range (200-1000 (50-80KTL3) / 180-1000 (100-125KTL3-X2) V) makes string sizing easier and lets the installation start producing even in weaker sunlight. High maximum efficiency (98.8-99%) means lower conversion losses and lower electricity bills.

The inverter comes in an IP65 enclosure, operates across a temperature range of -25…+60 (50-80KTL3) / -30…+60 (100-125KTL3-X2) °C, uses smart air cooling cooling, weighs 84 kg (dimensions 970/640/345 mm). It is suitable for indoor and outdoor installation.

Instalare și funcționare

Growatt MAX 120KTL3-X LV is three-phase (230/400 V) and has an IP65 enclosure, so it can be mounted indoors and outdoors. Installation should be carried out by a qualified installer in line with the manufacturer’s manual and the local grid connection requirements. Once commissioned, the inverter reports to the ShinePhone app and the ShineServer portal — you get a remote view of production, consumption. The unit is covered by a European service warranty (5 years per manufacturer).

Date tehnice esențiale

Parametrii electrici completi (tensiunile și curenții MPPT, randamentul, dimensiunile, greutatea) sunt prezentați în fișa tehnică a producătorului.

What sets the series apart — Growatt MAX 120KTL3-X LV

The MAX series comprises three-phase grid-tied inverters for commercial installations and PV farms — many independent MPPT trackers, a fuse-free design and string monitoring.

What to check when selecting the Growatt MAX 120KTL3-X LV

When buying an inverter, the key is matching its power rating to the panel power and distributing the modules correctly across the MPPT trackers. Growatt MAX 120KTL3-X LV is three-phase (230/400 V) and has 8 independent MPPT trackers, so it pays to plan the number and length of the strings around the available operating voltages already at the design stage. If you plan to add energy storage in the future, consider a hybrid version from the start to avoid replacing the unit. It is also worth planning the mounting location in advance (ventilation, Wi-Fi access for monitoring). If in doubt, send us your design — we will verify the selection free of charge before purchase.

Monitoring and the app — Growatt MAX 120KTL3-X LV

Growatt MAX 120KTL3-X LV works with the free ShinePhone app and the ShineServer portal. Once the inverter is connected to a Wi-Fi network, you get a constant remote view of energy production, the yield of individual strings and the history for any period. The app sends notifications about faults and drops in production, so the installer or the owner can react to issues quickly. For installers managing multiple sites, Growatt provides service accounts with a view of the whole inverter fleet from a single panel — convenient for maintaining installations across many customers. Remote monitoring also simplifies warranty handling: operating data makes diagnosis easier without a site visit.

Despre marca Growatt

Growatt este unul dintre cei mai mari producători mondiali de invertoare fotovoltaice și sisteme de stocare a energiei, prezent pe piața fotovoltaică de mai bine de un deceniu și furnizor de echipamente pentru instalații rezidențiale, comerciale și industriale în zeci de țări. Brandul se remarcă prin gama sa largă de invertoare — de la unități mici monofazate, la modele hibride cu stocare de energie, până la unități comerciale de mari dimensiuni — precum și prin ecosistemul extins de monitorizare ShinePhone/ShineServer.

De ce să cumpărați de la Growatt.tech

• Garanție europeană (5 ani, conform producătorului).
• Prețuri comerciale B2B — Autentificați-vă pentru a vizualiza prețurile comerciale.
• Asistență tehnică și consiliere — vă vom ajuta să alegeți combinația potrivită de invertor, baterie și accesorii. Întrebări: info@growatt.tech.

Garanție și asistență B2B

Growatt MAX 120KTL3-X LV is covered by a European service warranty (5 years per manufacturer). Installers and businesses see B2B trade prices after logging in — if you need a quote for a larger quantity or a complete inverter-plus-storage set, write to info@growatt.tech and we will prepare an offer.

Întrebări frecvente

Does the Growatt MAX 120KTL3-X LV work with energy storage?

No — it is an on-grid (grid-tied) inverter without battery support. If you need energy storage, choose a hybrid model.

How many phases and MPPT trackers does the MAX 120KTL3-X LV have?

The inverter is three-phase (230/400 V) and has 8 independent MPPT trackers. The number of MPPT trackers determines how many independent panel groups you can connect — important for roofs with differently oriented surfaces.

Can the Growatt MAX 120KTL3-X LV be installed outdoors?

Yes. The IP65 ingress protection rating allows indoor and outdoor installation. We recommend a shaded location, away from prolonged direct sunlight, with Wi-Fi coverage for monitoring.

What warranty does the MAX 120KTL3-X LV carry?

Produsul beneficiază de o garanție de service europeană (5 ani, conform producătorului).

Pot monitoriza instalarea de la distanță?

Yes, via the ShinePhone app and the ShineServer portal over Wi-Fi — with a view of production and energy consumption.

Care este diferența dintre un invertor hibrid și unul conectat la rețea (conectat la rețea)?

Un invertor conectat la rețea alimentează rețeaua și instalația cu toată energia fotovoltaică, dar nu funcționează cu o baterie. Un invertor hibrid poate, în plus, să stocheze surplusul de energie într-o baterie și să mențină alimentarea în cazul unei întreruperi a rețelei.

Where can I find the full electrical specification of the MAX 120KTL3-X LV?

În fișa tehnică oficială a producătorului sunt prezentate intervalele de tensiune și curent MPPT, randamentul, dimensiunile și greutatea. Valorile esențiale sunt rezumate în tabelul cu specificații de mai sus.

Prețurile comerciale B2B sunt vizibile după autentificare. Autentificați-vă pentru a vizualiza prețurile comerciale.