--- title: "Growatt MIC 3300TL-X Grid-tie Inverter: Specs & Datasheet | ComparePV" description: "Growatt MIC 3300TL-X 3.3 kW grid-tie inverter. Specs: 97.1% European efficiency, 1 MPPT, 550 V max DC input, 6.2 kg, 5 yrs warranty." source: "https://comparepv.com/inverter/growatt-mic-3300tl-x" updated: 2026-01-16 --- # Growatt MIC 3300TL-X ## Identity - **Manufacturer:** Growatt - **Model:** MIC 3300TL-X - **Series:** MIC - **Rated AC power:** 3.3 kW - **Type:** Grid-tie - **Phases:** Single-phase ## How it compares Compared against 362 inverters from 3 to 6 kW. Ranks are within that class. | Measure | This inverter | Class median | Standing | Rank in class | | --- | --- | --- | --- | --- | | European efficiency | 97.1% | 97.2% | Typical | 148 | | MPPT trackers | 1 | 2 | Weak - bottom 7% | 222 | | Max DC input voltage | 550 V | 600 V | Typical | 197 | | Weight per kW | 1.9 | 3.3 | Strong - top 8% | 28 | | Warranty | 5 yrs | 5 yrs | Typical | 34 | ## Specification ### AC output - **Rated AC power:** 3.3 kW - **Max apparent power:** 3.30 kVA - **Phases:** Single-phase - **Nominal AC voltage:** 230 V - **Max AC current:** 14.3 A - **Grid frequency:** 50 Hz - **Power factor:** 0.8 leading … 0.8 lagging - **Harmonic distortion (THD):** 3.0 % ### PV input - **Max DC input power:** 4.29 kW - **Max DC voltage:** 550 V - **MPPT voltage range:** 50 to 550 V - **Start-up voltage:** 50 V - **MPPT trackers:** 1 - **Max input current per MPPT:** 13.0 A - **Max short-circuit current per MPPT:** 16.0 A ### Efficiency - **European efficiency:** 97.1 % - **Max efficiency:** 97.6 % ### Physical - **Dimensions:** 254 × 274 × 138 mm - **Weight:** 6.2 kg - **Enclosure:** IP65 - **Cooling:** natural - **Operating temperature:** -25 to 60 °C - **Max humidity:** 100 % - **Max altitude:** 4000 m ### Connectivity and protection - **Interfaces:** Wi-Fi, Ethernet, Display - **Protocols:** RS485, USB, Wi-Fi, GPRS, RF, LAN - **Protection:** AFCI, DC switch, Surge protection ### Warranty and certificates - **Warranty:** 5 years - **Certifications:** CE, AS4777, AS/NZS 3100, CEI 0-21, VDE-AR-N 4105, VDE 0126-1-1, UTE C 15-712-1, EN50549, IEC 60068, IEC 61683, IEC 62116, IEC 61727, INMETRO, G98, C10/C11, UNE217001, UNE206007, PO12.2 ### Pros - **Exceptionally compact and lightweight design.** - With a mass of approximately 6.0-6.2 kg and dimensions of 138×274×254 mm, the MIC TL-X series is among the lightest 1-phase network inverters in the 0.6-3.3 kW range. Installation by a single person without additional equipment is feasible, which reduces labor costs in small residential installations. - **Maximum efficiency of up to 97.6%** - The non-transformer topology allows for a maximum efficiency of 97.6% (TL-X models 750-3300, according to ENF Solar datasheet). Under typical Polish solar conditions (where diffuse light dominates), an efficiency of around 96.5% translates into a significantly higher annual energy yield compared to older transformer-based systems. - **1 or 2 MPPT, depending on the configuration** - The availability of two independent MPPT (Maximum Power Point Tracking) controllers in certain models allows for the use of roof sections with different orientations or shading, without significantly reducing the overall performance of the system - a key feature for typical pitched roofs in single-family homes. - **Optional AFCI (Arc Fault Circuit Interrupter) module** - Optional arc fault circuit interrupter (AFCI) protection allows compliance with the requirements of certain insurers and investors who demand a higher level of safety - a feature that is rare among inverters in the sub-3.3 kW segment. - **A strong service network in Poland** - Distribution and after-sales service are provided by PVGroup.pl / Growatt.tech, with 7-day availability. This positions Growatt among the leading Chinese manufacturers in terms of after-sales support on the Polish market - a significant advantage when an installer has a large portfolio of inverters. ### Cons - **Lack of BNEF Tier 1 (bankable) status** - Growatt does not appear on the BNEF Tier 1 Power Inverter Manufacturers list (verified in the context of the product: tier\_1\_bankable: false). For projects requiring non-recourse financing or bank guarantees, this could represent a formal barrier in commercial PPA agreements or projects involving investment funds. - **Failure rate exceeding the premium segment** - According to data from igrowattinverter.com, newer Growatt models (2018-2025) have a failure rate of 2-5%, while premium brands (SolarEdge, Fronius) maintain a rate of 1-3%. The difference for small residential installations is minimal, but it can be significant for larger fleets. - **WiFi/Ethernet communication only through a separate module** - Unlike some competitors (such as SolarEdge, which includes a built-in communication module), the MIC series does not have standard network connectivity - it requires the purchase of a separate Wi-Fi dongle or Ethernet adapter, which adds an additional cost of approximately 150-300 zł and introduces another potential point of failure in the installation. ## About this series Growatt MIC series are single-phase grid-tie inverters designed for home and small commercial installations, where fast installation, stable operation, and clear diagnostics are key. What sets them apart is their **compact, lightweight design** facilitating single-person installation and **transformerless topology**, which contributes to high efficiency and quiet operation. Depending on the MIC variant, they offer 1 or 2 MPPT - this means better energy harvest control when panels are on different roof pitches, have different orientations, or partial shading occurs. The high European efficiency translates to truly excellent results under typical operating conditions in Poland, not just in ideal lab settings. A plus is **monitoring within the Growatt ecosystem** - with options for WiFi or Ethernet communication (via dedicated modules) and monitoring via the app and portal. The MIC series is not hybrid, so it is not designed for direct cooperation with energy storage systems - for that purpose, the manufacturer offers other product lines. You will find **network security and anti-islanding features** standard, along with optional AFCI, and a full set of conformity certificates and warranty with extension possibilities. ## Questions ### What power ratings are available in the Growatt MIC series, and what size of installation is this inverter suited for? The Growatt MIC series covers models ranging from 600 W to 3300 W (0.6 kW, 0.75 kW, 1 kW, 1.5 kW, 2 kW, 2.5 kW, 3 kW, and 3.3 kW). This range is dedicated to small residential installations - typically 2 to 12 PV modules. If you are planning a larger system or have a three-phase grid connection, the MIC series is not the appropriate choice; in that case, consider models from the MIN or MAX product lines. ### How many MPPT inputs does the Growatt MIC inverter have, and when is it worth choosing a dual-MPPT variant? Depending on the model, the MIC series offers either 1 or 2 independent MPPT inputs. A second MPPT is beneficial when modules are mounted on two different roof planes, have different orientations (e.g., south and east), or when part of the array is subject to shading. Each string then operates at its own optimal power point, which measurably increases energy yield under more challenging conditions. ### Is the Growatt MIC inverter compatible with a battery energy storage system? No, the MIC series is a grid-tie-only inverter and does not support direct integration with a battery. Energy generated by the PV modules is either fed directly into the grid or consumed on-site, but it cannot be stored. For installations requiring energy storage, Growatt offers dedicated hybrid inverter lines, such as the SPH or SPA series. ### How does monitoring of the Growatt MIC inverter work, and do I need additional hardware? The MIC inverter does not have a built-in communication module - remote monitoring requires a separately purchased WiFi dongle (Shine WiFi-X) or an Ethernet adapter (Shine Link). Once connected, operational data is available in the Growatt mobile app and on the ShineServer web portal. This allows you to track real-time production, historical performance, and any fault alerts without requiring physical access to the device. ### What is the warranty on the Growatt MIC inverter, and can it be extended? The standard warranty for the Growatt MIC series is 10 years. The manufacturer offers the option to extend coverage for a longer period - full terms and conditions are available at pl.growatt.com or through an authorized distributor. Growatt technical support operates 7 days a week, which is particularly valuable in the event of a PV system failure during peak summer generation season. ### Is the Growatt MIC inverter easy to install, and can a single installer handle the job? Yes, the compact and lightweight design of the MIC series - models typically weigh under 10 kg - was engineered for fast single-person installation. The transformerless topology eliminates a heavy magnetic core, simplifying both transport and wall or enclosure mounting. DC and AC wiring terminals are clearly labeled, and the LED display facilitates initial commissioning as well as ongoing diagnostics. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/inverters/2115751128655da90660591-c4992deeb634.pdf) ## Alternatives | Inverter | Rated AC | Euro efficiency | MPPT | Weight | Difference | | --- | --- | --- | --- | --- | --- | | [SOFAR 3.3KTL2-G3](https://comparepv.com/inverter/sofar-solar-sofar-3-3ktl2-g3) | 3.3 kW | 97.2% | 1 | 7.3 kg | 1.1 kg heavier | | [Growatt MIC 3300TL-X2 (Pro)](https://comparepv.com/inverter/growatt-mic-3300tl-x2-pro) | 3.3 kW | 97.1% | 1 | 6.2 kg | Similar on paper | | [Growatt MIC 3300TL-X2](https://comparepv.com/inverter/growatt-mic-3300tl-x2) | 3.3 kW | 97.1% | 1 | 6.2 kg | Similar on paper | | [SOFAR 3300TL-G3](https://comparepv.com/inverter/sofar-solar-sofar-3300tl-g3) | 3.3 kW | | 1 | | Similar on paper | | [SolarEdge SE3500H (HD‑Wave, single phase)](https://comparepv.com/inverter/solaredge-solaredge-se3500h-hd-wave-single-phase) | 3.5 kW | 98.8% | | 7.8 kg | +0.2 kW, +1.7 pp efficiency, 1.6 kg heavier | | [Fronius Primo 3.5-1](https://comparepv.com/inverter/fronius-international-fronius-primo-3-5-1) | 3.5 kW | 96.8% | 2 | 21.5 kg | +0.2 kW, +1 MPPT, 15.3 kg heavier | | [SolarEdge SE3000H (HD‑Wave, single phase)](https://comparepv.com/inverter/solaredge-solaredge-se3000h-hd-wave-single-phase) | 3 kW | 98.3% | | 7.8 kg | -0.3 kW, +1.2 pp efficiency, 1.6 kg heavier | | [Solis-3P3K-4G](https://comparepv.com/inverter/ginlong-solis-solis-3p3k-4g) | 3 kW | 97.8% | 2 | 17.3 kg | -0.3 kW, +0.7 pp efficiency, +1 MPPT | --- Source: https://comparepv.com/inverter/growatt-mic-3300tl-x