--- title: "Sungrow S450S Microinverter: Specs & Datasheet | ComparePV" description: "Sungrow S450S 0.45 kW microinverter. Specs: 95.4% European efficiency, 60 V max DC input, 2.5 kg." source: "https://comparepv.com/inverter/sungrow-s450s" updated: 2026-01-16 --- # Sungrow S450S ## Identity - **Manufacturer:** Sungrow - **Model:** S450S - **Series:** S450S/S800S - **Rated AC power:** 0.45 kW - **Type:** Microinverter - **Phases:** Single-phase ## How it compares Compared against 42 microinverters. Ranks are within that class. | Measure | This inverter | Class median | Standing | Rank in class | | --- | --- | --- | --- | --- | | European efficiency | 95.4% | 95.4% | Typical | 1 | | MPPT trackers | - | 2 | | | | Max DC input voltage | 60 V | 60 V | Typical | 4 | | Weight per kW | 5.6 | 4.0 | Weak - bottom 12% | 37 | | Warranty | - | 10 yrs | | | ## Specification ### AC output - **Rated AC power:** 0.45 kW - **Max apparent power:** 0.45 kVA - **Phases:** Single-phase - **Nominal AC voltage:** 230 V - **Max AC current:** 2.1 A - **Grid frequency:** 50 Hz - **Power factor:** > 0.99 / 0.8 leading - 0.8 lagging - **Harmonic distortion (THD):** 5.0 % ### PV input - **Max DC voltage:** 60 V - **MPPT voltage range:** 16 to 60 V - **Start-up voltage:** 22 V - **Max input current per MPPT:** 16.0 A - **Max short-circuit current per MPPT:** 20.0 A ### Efficiency - **European efficiency:** 95.4 % - **Max efficiency:** 96.2 % ### Physical - **Dimensions:** 168 × 238 × 42 mm - **Weight:** 2.5 kg - **Enclosure:** IP67 - **Cooling:** natural - **Operating temperature:** -40 to 65 °C - **Max humidity:** 100 % - **Max altitude:** 2000 m ### Connectivity and protection - **Interfaces:** Wi-Fi, Bluetooth, Display - **Protocols:** WLAN, Bluetooth - **Protection:** Surge protection ### Warranty and certificates - **Certifications:** EN / IEC 62109-1, EN / IEC 62109-2, EN / IEC 61683, EN 50530, EN / IEC 61000-6-1, EN / IEC 61000-6-2, EN / IEC 61000-6-3, EN / IEC 61000-6-4, VDE 4105, VDE 0126, UNE 217002, CEI 0-21, IEC 60529, IEC 62116, EN 50549, PSE RFG, EN 301489, EN 300328, EN / IEC 62311, ETSI EN 303 645 ### Pros - **Ultra-wide MPPT input range (16-60 V)** - The 16-60 V DC input window enables efficient operation with modern high-power modules even at low irradiance levels, translating into longer daily energy production windows compared to microinverters with narrower input ranges (typically 22-48 V among mid-range competitors). - **Dual independent MPPT in the S800S** - The S800S model supports two panels with separate per-module maximum power point tracking. According to manufacturer data, this delivers approximately 2% higher energy yield versus comparable products without per-module MPPT - a particularly meaningful advantage under partial shading conditions or when panels on the same roof face different orientations. - **IP67 enclosure + C5 corrosion resistance** - The IP67-rated enclosure provides full protection against temporary submersion, while the C5 certification (IEC EN ISO 12944) confirms suitability for long-term operation in industrial and marine environments. This represents one of the highest protection ratings in the residential prosumer microinverter segment, offering a clear advantage over the many competitors that offer only IP65. - **96.2% peak efficiency and 200+ safety tests** - The 96.2% peak efficiency confirmed in the V6 datasheet (July 2024) places the series in the top quintile of prosumer microinverters. The series has passed more than 200 safety tests and holds 12 international certifications, including Class B EMC compliance - a relevant factor for installations near equipment sensitive to electromagnetic interference. - **Tier-1 manufacturer with 27 years of industry experience** - Sungrow (founded 1997) is classified as a bankable Tier-1 manufacturer, reducing service and warranty risk. The company maintains global service centers and a long-standing presence in the European market - both critical considerations for a 15-year product that requires reliable after-sales support. ### Cons - **15-year warranty vs. 25 years from the market leader** - The standard manufacturer warranty is 15 years, whereas the Enphase IQ8 carries a 25-year limited warranty. For installations with a typical payback period of 8-12 years, the absence of warranty coverage during the second half of the system's operational life (years 16-25) represents a meaningful difference in investment risk profile. - **New product line - limited field deployment data** - The S450S/S800S series made its public debut at Intersolar Europe in June 2024. The absence of multi-year field installation data introduces a higher degree of uncertainty regarding real-world long-term reliability, in contrast to the Enphase IQ7/IQ8 lineup, which has a well-documented multi-year track record under European operating conditions. ## About this series Sungrow S450S/S800S series are **grid-tie (on-grid) microinverters** designed for grid-connected operation - ideal where flexibility for expansion and high energy yield per module matter most. Their greatest advantage is **module-level MPPT**: the S450S features a single tracking channel, while the S800S has **two independent MPPT channels**, facilitating production optimization under partial shading, different panel orientations, or uneven soiling. In practice, the high European efficiency means the inverter maintains excellent performance not only in ideal laboratory conditions but also during typical operation for most of the season - providing a real benefit for annual energy production. A plus is the **WLAN module-level monitoring** and straightforward installation and service integration. The enhanced durability housing (IP67) facilitates installation in challenging conditions, and the fast shutdown feature enhances safety. This makes them an excellent choice for home micro-installations, small commercial rooftops, and projects where module-level monitoring matters, especially for setups not requiring energy storage compatibility. (\[es.enfsolar.com\](https://es.enfsolar.com/pv/inverter-datasheet/18918?utm\_source=openai)) ## Questions ### What is the warranty on the Sungrow S450S and S800S microinverters? Sungrow provides a 15-year warranty on the S450S and S800S microinverter series. This is significantly longer than the standard 5-10 years offered by many string inverter manufacturers. To keep the warranty valid, the product label must remain intact and proof of purchase with a date must be retained. The extended warranty reflects the high reliability of these IP67-rated devices. ### What is the difference between the Sungrow S450S and S800S - which model should I choose? The S450S is a 1-in-1 microinverter with a single DC input and one MPPT tracker, designed to work with a single panel rated between 375 W and 570 W. The S800S is a 2-in-1 model with two independent MPPT inputs, capable of handling two panels simultaneously. The S800S performs better in installations where panels may have different orientations or uneven shading, since each panel is optimized independently. ### Does the Sungrow S800S operate effectively under partial roof shading? Yes - this is precisely the condition the S800S is designed for. With two independent MPPT trackers, each connected panel operates at its own maximum power point. Shading on one panel - for example from a chimney or dormer window - does not reduce the output of adjacent modules. This is the primary advantage of microinverters over traditional string inverters, where a single underperforming panel limits the output of the entire string. ### Do the Sungrow S450S/S800S microinverters operate in winter and at low temperatures? Yes. The operating temperature range is -40°C to +65°C, so the devices function without issue in typical Central European winter conditions. The IP67 enclosure provides protection against moisture, snow, and dust. Corrosion resistance rated at class C5 makes this series suitable for coastal and industrial environments as well. ### Can the Sungrow S450S or S800S be paired with an energy storage system (battery)? No. The S450S/S800S series consists of grid-tied (on-grid) microinverters only, meaning they are designed to operate directly with the utility grid. They have no battery output and no off-grid mode. If you plan to add energy storage, a different inverter will be required - for example, one from the Sungrow SH hybrid series. The S450S/S800S series is an excellent choice when the priority is maximum energy yield rather than energy independence. ### How does production monitoring work on the Sungrow S450S/S800S microinverters? The S450S/S800S series offers module-level monitoring via WLAN. Data is accessible through the Sungrow iSolarCloud app, where production for each individual panel can be tracked in real time. This is particularly useful for fault diagnosis and for verifying whether a specific module is affected by shading or soiling. Commissioning and servicing are simplified thanks to straightforward communication integration. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/inverters/ds-20250414-s450s-s800s-datasheet-v6-en-191f1466ed48.pdf) ## Alternatives | Inverter | Rated AC | Euro efficiency | MPPT | Weight | Difference | | --- | --- | --- | --- | --- | --- | | [Sungrow S450S-L](https://comparepv.com/inverter/sungrow-s450s-l) | 0.45 kW | 95.4% | | 2.5 kg | Similar on paper | | [Deye SUN500G3-EU-230](https://comparepv.com/inverter/deye-sun500g3-eu-230) | 0.5 kW | | 1 | 3.5 kg | 1.0 kg heavier | | [Deye SUN500G-230-EU](https://comparepv.com/inverter/deye-sun500g-230-eu) | 0.5 kW | | 2 | 2.4 kg | Similar on paper | | [Deye SUN600G2-US-127](https://comparepv.com/inverter/deye-sun600g2-us-127) | 0.5 kW | | 2 | 2.4 kg | Similar on paper | --- Source: https://comparepv.com/inverter/sungrow-s450s