--- title: "Growatt MAX 80KTL3 LV Grid-tie Inverter: Specs & Datasheet | ComparePV" description: "Growatt MAX 80KTL3 LV 80 kW grid-tie inverter. Specs: 98.5% European efficiency, 1100 V max DC input, 86.0 kg, 5 yrs warranty." source: "https://comparepv.com/inverter/growatt-max-80ktl3-lv" updated: 2026-01-16 --- # Growatt MAX 80KTL3 LV ## Identity - **Manufacturer:** Growatt - **Model:** MAX 80KTL3 LV - **Series:** MAX 50~80KTL3 LV - **Rated AC power:** 80 kW - **Type:** Grid-tie - **Phases:** Three-phase ## How it compares Compared against 243 inverters from 30 to 100 kW. Ranks are within that class. | Measure | This inverter | Class median | Standing | Rank in class | | --- | --- | --- | --- | --- | | European efficiency | 98.5% | 98.2% | Strong - top 8% | 7 | | MPPT trackers | - | 4 | | | | Max DC input voltage | 1100 V | 1100 V | Typical | 3 | | Weight per kW | 1.1 | 1.1 | Typical | 112 | | Warranty | 5 yrs | 5 yrs | Typical | 17 | ## Specification ### AC output - **Rated AC power:** 80 kW - **Max AC power:** 88.80 kW - **Max apparent power:** 88.80 kVA - **Phases:** Three-phase - **Nominal AC voltage:** 400 V - **Max AC current:** 128.8 A - **Grid frequency:** 50 Hz - **Power factor:** 0.8 leading ... 0.8 lagging - **Harmonic distortion (THD):** 3.0 % ### PV input - **Max DC input power:** 120.00 kW - **Max DC voltage:** 1100 V - **MPPT voltage range:** 200 to 1000 V - **Start-up voltage:** 250 V - **Max input current per MPPT:** 26.0 A - **Max short-circuit current per MPPT:** 32.0 A ### Efficiency - **European efficiency:** 98.5 % - **Max efficiency:** 99.0 % ### Physical - **Dimensions:** 600 × 860 × 300 mm - **Weight:** 86.0 kg - **Enclosure:** IP65 - **Cooling:** forced-air - **Operating temperature:** -25 to 60 °C - **Max humidity:** 100 % - **Max altitude:** 4000 m ### Connectivity and protection - **Interfaces:** Wi-Fi, Display - **Protocols:** RS485, USB, WiFi (optional), RF (optional), GPRS (optional) - **Protection:** DC switch, Surge protection ### Warranty and certificates - **Warranty:** 5 years - **Certifications:** CE, VDE0126, EN50438, EN50549-1, C10/C11, UTE C 15-712, IEC62116, IEC61727, IEC 60068, IEC 61683, CEI0-21, CEI 0-16, N4105, DRRG, G98/G99, G100, NRS 097-2-1, MEA, PEA, KSC8565, Greece ### Pros - **European efficiency of 98.5% - in the top quartile of the segment** - European efficiency (taking into account weather conditions) at 98.5% to 98.8% places the MAX 50-80KTL3 LV series in the top quartile of commercial inverters ranging from 50 to 80 kW available on the Polish market. In the climate conditions of Poland, where partial cloud cover is common, it is the European efficiency - not peak efficiency - that determines the actual annual energy yield. - **6-7 independent MPPT for complex PV arrays** - The 50 kW model features 6, while the 80 kW model has 7 independent MPPT trackers. In contrast, many competing inverters of this power class (e.g., Sungrow SG50CX) typically offer standardly 4-6 MPPT. A greater number of trackers allows for the connection of different orientations of panels, different string lengths, and more effective reduction of losses in partially shaded, large-scale industrial installations. - **Built-in AFCI (Arc Fault Circuit Interrupter) and Anti-PID (Polyvinyl Chloride Ignition Detection) (optional)** - The availability of AFCI (arc fault detection) and Anti-PID functionality aligns with the increasing safety requirements in the EU market. AFCI is already mandatory in the US (NEC 2017+) and is increasingly required by commercial property insurers in Poland. Anti-PID actively combats PID module degradation, which is particularly important in large installations with long strings. - **IP65 rating and operation in temperatures ranging from -25°C to +60°C** - The IP65 enclosure and wide operating temperature range (-25°C to +60°C) allow for safe outdoor installation in the Polish climate (frost, rain, summer heat) without the need for additional protective enclosures. The dust and water resistance of IP65 is a standard requirement for most industrial investors in EPC tenders. - **String analysis and I-V curve scanning** - Built-in string monitoring and I-V curve scanning functionality enable the identification of faults (shadowing, damaged module, connector corrosion) without the need for external analyzers costing 5,000-15,000 zł. In commercial installations, this reduces diagnostic and downtime time, directly reducing revenue losses from production. ### Cons - **Not classified as a Tier-1 bankable entity (BNEF)** - Growatt is not classified as a Tier-1 bankable manufacturer by BloombergNEF, which could pose a barrier to obtaining bank financing for commercial projects above approximately 500 kWp. Banks and infrastructure funds often require equipment from manufacturers with documented bankability (e.g., Huawei, SMA, Sungrow) as a condition for providing project financing. - **Warranty service time: 23-40 days** - Available market data indicates that Growatt's average turnaround time for warranty claims and replacements is 23-40 business days, compared to shorter times offered by premium manufacturers (SMA, Fronius), which maintain extensive local parts warehouses in Europe. For an industrial installation of 500 kW, each week of downtime represents a loss of approximately 3,000-6,000 zł in energy revenue (at a price of 0.45 zł/kWh and 4.5 hours/day). ## About this series The **Growatt MAX 50-80KTL3 LV** series are three-phase **on-grid** inverters specifically designed for commercial and industrial applications, where reliable operation, fast diagnostics, and support for multiple PV strings are essential. The use of **6 or 7 independent MPPTs** simplifies the design of large-scale PV fields. This allows you to connect modules with different orientations, string lengths, and effectively reduces losses due to partial shading by optimizing each string section individually. High efficiency, including European efficiency, translates into significantly higher energy production under typical operating conditions in Poland, not just in ideal laboratory settings. The **smart string monitoring** and diagnostic functions (including I-V curve scanning) help quickly identify performance drops and locate faults. Communication and monitoring can be implemented via Shine solutions (e.g., Wi-Fi or Ethernet), with visualization in the app. Regarding safety, features such as Type II overvoltage protection are available, and depending on the version and market, options like Anti-PID and AFCI may also be offered. The standard warranty is extendable - depending on the distributor. ## Questions ### How many MPPT trackers does the Growatt MAX 50-80KTL3 LV have, and why does this matter for large-scale installations? The MAX 50-80KTL3 LV series features 6 or 7 independent MPPT trackers, depending on the variant. This allows separate module strings with different orientations, tilt angles, or string lengths to be connected, with each MPPT operating at its own optimal power point. In practice, this translates to reduced losses under partial shading conditions and greater design flexibility for large ground-mount systems or rooftop installations with irregular layouts. ### What is the real-world efficiency of the Growatt MAX 80KTL3 LV under Polish climatic conditions? The inverter's peak efficiency reaches 99%, but the figure most relevant for energy yield assessment in Poland is the European weighted efficiency (Euro-eta), which stands at 98.5-98.6%. This metric better reflects actual generation performance under the variable irradiance conditions typical of the Polish climate. The unit operates across a temperature range of -25 °C to +60 °C, though power derating begins progressively above 45 °C. ### What warranty is offered on the Growatt MAX 50-80KTL3 LV inverters, and can it be extended? The standard manufacturer's warranty is 5 years. Distributors offer extended warranty packages of up to 10 or 15 years for an additional fee. It is advisable to confirm the available warranty tiers with your specific supplier before purchase, as terms and conditions may vary. Growatt, as a Chinese manufacturer, is not classified as Tier 1 by BloombergNEF, which for some investors is an additional reason to opt for a longer service package. ### What is the AFCI function in the Growatt MAX 80KTL3 LV, and is it worth ordering? AFCI (Arc Fault Circuit Interrupter) is an optional DC-side arc fault detection feature. The inverter distinguishes between harmless operational arcs and hazardous arcs caused by damaged cables, and automatically disconnects the affected circuit. In industrial installations with long DC cable runs and high DC voltages, this is an important fire safety element and is specifically required or recommended under certain local building codes. ### How can the Growatt MAX 50-80KTL3 LV be monitored, and is it possible to check the status of individual strings? The inverter communicates via the Shine ecosystem (Wi-Fi or Ethernet), with production data available in real time through the mobile app and web portal. Importantly for O&M teams, the device provides intelligent string monitoring (up to 12 or 14 strings in newer versions) and an I-V curve scan function, enabling rapid identification of an underperforming string without the need for physical inspection of individual panels. ### Is the Growatt MAX 50-80KTL3 LV suitable for outdoor installation, and how does it handle dust and moisture exposure? Yes, the MAX 50-80KTL3 LV series carries an IP65 ingress protection rating, meaning it is fully dust-tight and protected against water jets from any direction. The unit can be mounted directly outdoors, for example on the exterior wall of an industrial building. Its dimensions are 860 × 600 × 300 mm and it weighs 82-86 kg, so a robust mounting structure and a minimum two-person installation crew are required. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/inverters/72797131655da79d6def6-643ff7aff57e.pdf) ## Alternatives | Inverter | Rated AC | Euro efficiency | MPPT | Weight | Difference | | --- | --- | --- | --- | --- | --- | | [GoodWe GW80KBF-MT](https://comparepv.com/inverter/goodwe-gw80kbf-mt) | 80 kW | 98.4% | 4 | 65.0 kg | 21.0 kg lighter | | [GoodWe GW80KHV-MT](https://comparepv.com/inverter/goodwe-gw80khv-mt) | 80 kW | 98.4% | 4 | 65.0 kg | 21.0 kg lighter | | [GoodWe GW80K-MT](https://comparepv.com/inverter/goodwe-gw80k-mt) | 80 kW | 98.3% | 4 | 70.0 kg | 16.0 kg lighter | | [Ginlong Solis S6-GC3P80K07-LV-ND](https://comparepv.com/inverter/ginlong-solis-s6-gc3p80k07-lv-nd) | 80 kW | 98.3% | 7 | 105.0 kg | 19.0 kg heavier | | [Solis-80K-5G](https://comparepv.com/inverter/ginlong-solis-solis-80k-5g) | 80 kW | 98.3% | 9 | 82.0 kg | 4.0 kg lighter | | [Deye SUN-80K-G03](https://comparepv.com/inverter/deye-sun-80k-g03) | 80 kW | 98.3% | | 81.0 kg | 5.0 kg lighter | | [Deye SUN-80K-G](https://comparepv.com/inverter/deye-sun-80k-g) | 80 kW | 98.3% | 4 | 60.0 kg | 26.0 kg lighter | | [SOFAR 80KTLX-G3](https://comparepv.com/inverter/sofar-solar-sofar-80ktlx-g3) | 80 kW | 98.2% | 6 | 50.0 kg | 36.0 kg lighter | --- Source: https://comparepv.com/inverter/growatt-max-80ktl3-lv