--- title: "Sungrow SG110CX Grid-tie Inverter: Specs & Datasheet | ComparePV" description: "Sungrow SG110CX 100 kW grid-tie inverter. Specs: 98.5% European efficiency, 9 MPPT, 1100 V max DC input, 89.0 kg." source: "https://comparepv.com/inverter/sungrow-sg110cx" updated: 2026-01-16 --- # Sungrow SG110CX ## Identity - **Manufacturer:** Sungrow - **Model:** SG110CX - **Series:** SG110CX - **Rated AC power:** 100 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 | 9 | 4 | Strong - top 17% | 16 | | Max DC input voltage | 1100 V | 1100 V | Typical | 3 | | Weight per kW | 0.9 | 1.1 | Typical | 63 | | Warranty | - | 5 yrs | | | ## Specification ### AC output - **Rated AC power:** 100 kW - **Max AC power:** 110.00 kW - **Max apparent power:** 110.00 kVA - **Phases:** Three-phase - **Nominal AC voltage:** 400 V - **Max AC current:** 158.8 A - **Grid frequency:** 50 Hz - **Power factor:** 0.8 leading – 0.8 lagging - **Harmonic distortion (THD):** 3.0 % ### PV input - **Max DC voltage:** 1100 V - **MPPT voltage range:** 200 to 1000 V - **Start-up voltage:** 250 V - **MPPT trackers:** 9 - **Max input current per MPPT:** 26.0 A - **Max short-circuit current per MPPT:** 40.0 A ### Efficiency - **European efficiency:** 98.5 % - **Max efficiency:** 98.7 % ### Physical - **Dimensions:** 660 × 1051 × 362 mm - **Weight:** 89.0 kg - **Enclosure:** IP66 - **Cooling:** forced-air - **Operating temperature:** -30 to 60 °C - **Max humidity:** 100 % - **Max altitude:** 4000 m ### Connectivity and protection - **Interfaces:** Wi-Fi, Ethernet, Bluetooth, Display - **Protocols:** RS485, WLAN (optional), Ethernet (optional), Bluetooth (via app) - **Protection:** DC switch, Surge protection ### Warranty and certificates - **Certifications:** IEC 62109, IEC 61727, IEC 62116, IEC 60068, IEC 61683, VDE-AR-N 4110:2018, VDE-AR-N 4120:2018, IEC 61000-6-3, EN 50549, AS/NZS 4777.2:2015, CEI 0-21, VDE 0126-1-1/A1, VFR 2014, UTE C15-712-1:2013, DEWA ### Pros - **9 Independent MPPTs, 18 String Inputs** - The inverter features 9 independent MPPT trackers with 18 string inputs, delivering exceptional design flexibility at 110 kW. It accommodates roof sections with varying azimuths and tilt angles without significant energy losses, and each MPPT supports up to 26 A - making it fully compatible with modern bifacial modules with ISC values exceeding 20 A. - **98.5% European Efficiency, 98.7% Peak** - A European efficiency of 98.5% (peak 98.7%) places the SG110CX among the top performers in the commercial 100+ kW inverter segment. By comparison, the reference SMA Sunny Tripower CORE2 (110 kW) achieves approximately 98.3% European efficiency - a 0.2 percentage point difference that translates to roughly 180-250 kWh of additional annual yield in a typical 500 kWp system under Polish irradiance conditions. - **IP66 Ingress Protection + C5 Corrosion Resistance** - The IP66-rated enclosure with certified C5 corrosion resistance (the highest category per ISO 12944, covering marine and industrial environments) enables deployment in demanding locations such as chemical plants, coastal sites, and agri-PV installations. Most direct competitors in this power class offer only C3 or C4 as standard. - **Low Weight: 18 kg at 110 kW** - At just 18 kg, the inverter achieves a power density of approximately 6.1 kW/kg. This enables single-person installation without lifting equipment or a crane, and reduces structural mounting costs. Competing units in the same power class - such as the Huawei SUN2000-100KTL-M1 - weigh 32-35 kg. - **Wide MPPT Voltage Window and 250 V Start-Up Voltage** - A low MPPT start-up threshold of 250 V DC combined with a maximum input voltage of 1,100 V DC enables earlier energy production at dawn and extended generation at dusk compared to units with 350-400 V thresholds. The 1,100 V input range also allows longer string configurations, reducing DC cabling requirements and the number of string combiner boxes. ### Cons - **Thermal Derating at 50 °C: -9% Output Power** - According to the official Sungrow datasheet, at an ambient temperature of 50 °C the inverter reduces its output power to 100 kW from the rated 110 kW - a reduction of approximately 9%. Under typical Polish climatic conditions this is rarely a concern; however, for industrial installations with limited ventilation or units mounted in enclosed, non-air-conditioned enclosures, this parameter must be accounted for in yield analysis. ## About this series The Sungrow SG110CX series are three-phase grid-tie inverters designed for large commercial and industrial installations, where stability is key, fast service is essential, and maximum yield from every string is crucial. The biggest advantage is **9 independent MPPTs** - making it easier to design PV fields with different orientations and tilts, and minimizing losses during partial shading or uneven soiling. High **European efficiency** means significantly more energy in typical operating conditions in Poland, not just in ideal laboratory settings. In practice, this translates to better energy production throughout the day, especially under variable sunlight conditions. Remote monitoring and diagnostics are available (via Bluetooth app, RS485, and optionally WiFi or Ethernet), simplifying O&M oversight, enabling quick updates, and rapidly identifying issues on the strings. The construction with a high IP rating and **surge protection for AC and DC** supports safe operation in challenging conditions. The series includes required conformity certificates (among others, CE, EMC, LVD, EN 50549) and comes standard with the manufacturer's warranty. ## Questions ### How many MPPT inputs does the Sungrow SG110CX inverter have, and why does this matter for large-scale installations? The Sungrow SG110CX features 9 independent MPPT inputs. In practice, this means each string group can be connected separately and have its maximum power point tracked independently of the others. As a result, a large commercial installation with roof sections at different azimuths or subject to partial shading loses significantly less energy than it would with an inverter offering only one or two MPPT inputs. ### What warranty is offered on the Sungrow SG110CX inverter? The standard manufacturer's warranty for the Sungrow SG110CX is 10 years. An extended warranty of up to 15 years is available for purchase. Sungrow maintains an official local presence in Poland, which means on-the-ground service support, Polish-language technical assistance, and access to spare parts without the need to source them from abroad. ### Is the Sungrow SG110CX suitable for installation near the sea or in corrosive environments? Yes. The inverter carries an IP66 ingress protection rating and a C5 anti-corrosion certification, which is specifically designed for environments with elevated humidity and airborne salinity, such as coastal zones and industrial facilities. Built-in AC and DC surge protective devices (SPDs) provide additional protection for the electronics against transient overvoltages. ### How can the Sungrow SG110CX inverter be monitored remotely? The Sungrow SG110CX has a built-in Bluetooth interface with a dedicated mobile app for rapid on-site diagnostics, as well as an RS485 port for integration with a SCADA system or data logger. Optionally, a WiFi or Ethernet module can be added to enable access to the iSolarCloud platform, which provides comprehensive production monitoring, alerts, and remote firmware updates. ### What is the peak efficiency of the Sungrow SG110CX inverter, and what does this mean for annual energy yield? The SG110CX achieves a maximum efficiency of 98.7%. Its high weighted European efficiency - measured against an irradiance profile representative of European climates - translates into better production performance under the variable solar conditions typical of Poland. In a 110 kW system, a difference of even 0.5 percentage points in efficiency can amount to several hundred additional kilowatt-hours per year. ### Is the Sungrow SG110CX compatible with bifacial modules, and what string protection does it offer? Yes, the SG110CX is officially compatible with bifacial modules and supports the higher input currents resulting from additional energy generation from the rear side of the modules. The inverter is equipped with intelligent string current monitoring in a fuse-free design, which simplifies maintenance and reduces potential failure points. An optional AFCI (Arc Fault Circuit Interrupter) function is also available, capable of detecting DC-side arc faults within the installation. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/inverters/DS-20210206-SG110CX-Datasheet-including-Premium-V1-11-EN-26f1e1650ef8.pdf) ## Alternatives | Inverter | Rated AC | Euro efficiency | MPPT | Weight | Difference | | --- | --- | --- | --- | --- | --- | | [Huawei SUN2000-100KTL-M2](https://comparepv.com/inverter/huawei-sun2000-100ktl-m2) | 100 kW | 98.6% | 10 | 93.0 kg | +1 MPPT, 4.0 kg heavier | | [Huawei SUN2000-100KTL-M1 (@480 V)](https://comparepv.com/inverter/huawei-sun2000-100ktl-m1-480-v) | 100 kW | 98.6% | 10 | 90.0 kg | +1 MPPT, 1.0 kg heavier | | [SMA Solar Sunny Highpower PEAK3 SHP 100-21](https://comparepv.com/inverter/sma-solar-sunny-highpower-peak3-shp-100-21) | 100 kW | 98.5% | 1 | 99.0 kg | -8 MPPT, 10.0 kg heavier | | [SMA Solar Sunny Highpower Storage SHPS 100-21](https://comparepv.com/inverter/sma-solar-sunny-highpower-storage-shps-100-21) | 100 kW | 98.5% | | 99.0 kg | 10.0 kg heavier | | [Solis-100K-5G](https://comparepv.com/inverter/ginlong-solis-solis-100k-5g) | 100 kW | 98.5% | 9 | 82.0 kg | 7.0 kg lighter | | [Solis-100K-HV-5G](https://comparepv.com/inverter/ginlong-solis-solis-100k-hv-5g) | 100 kW | 98.5% | 9 | 82.0 kg | 7.0 kg lighter | | [Growatt MAX 100KTL3-X LV](https://comparepv.com/inverter/growatt-max-100ktl3-x-lv) | 100 kW | 98.4% | 10 | 84.0 kg | +1 MPPT, 5.0 kg lighter | | [Huawei SUN2000-100KTL-M1 (@380 V)](https://comparepv.com/inverter/huawei-sun2000-100ktl-m1-380-v) | 100 kW | 98.4% | 10 | 90.0 kg | +1 MPPT, 1.0 kg heavier | --- Source: https://comparepv.com/inverter/sungrow-sg110cx