--- title: "GoodWe GW6K-DNS-CN-G40 Grid-tie Inverter: Specs & Datasheet | ComparePV" description: "GoodWe GW6K-DNS-CN-G40 6 kW grid-tie inverter. Specs: 2 MPPT, 600 V max DC input, 9.2 kg." source: "https://comparepv.com/inverter/goodwe-gw6k-dns-cn-g40" updated: 2026-01-16 --- # GoodWe GW6K-DNS-CN-G40 ## Identity - **Manufacturer:** GoodWe - **Model:** GW6K-DNS-CN-G40 - **Series:** DNS G4 - **Rated AC power:** 6 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 | - | 97.2% | | | | MPPT trackers | 2 | 2 | Typical | 13 | | Max DC input voltage | 600 V | 600 V | Typical | 94 | | Weight per kW | 1.5 | 3.3 | Strong - top 1% | 2 | | Warranty | - | 5 yrs | | | ## Specification ### AC output - **Rated AC power:** 6 kW - **Max AC power:** 6.60 kW - **Max apparent power:** 6.60 kVA - **Phases:** Single-phase - **Nominal AC voltage:** 220 V - **Max AC current:** 30.0 A - **Grid frequency:** 50 Hz - **Power factor:** ~1 (0.8 leading … 0.8 lagging adjustable) - **Harmonic distortion (THD):** 3.0 % ### PV input - **Max DC voltage:** 600 V - **MPPT voltage range:** 40 to 560 V - **Start-up voltage:** 50 V - **MPPT trackers:** 2 - **Max input current per MPPT:** 21.0 A - **Max short-circuit current per MPPT:** 26.0 A ### Efficiency - **Max efficiency:** 98.1 % ### Physical - **Dimensions:** 323 × 358 × 165 mm - **Weight:** 9.2 kg - **Enclosure:** IP66 - **Cooling:** natural - **Noise:** 25 dB - **Operating temperature:** -25 to 60 °C - **Max humidity:** 100 % - **Max altitude:** 4000 m ### Connectivity and protection - **Interfaces:** Wi-Fi, Ethernet, Bluetooth, Display - **Protocols:** RS485, WiFi, LAN/Ethernet, Bluetooth, 4G (optional) - **Protection:** DC switch, Surge protection ### Warranty and certificates - **Certifications:** Grid codes: NB/T 32004, VDE-AR-N 4105, VDE0126-1-1, G83/2, EN50438(PL), EN50438(SW), AS4777.2, IEC61727, Safety: NB/T 32004; IEC62109-1&2, EMC: NB/T 32004, EN 61000-6-1, EN 61000-6-2, EN 61000-6-3, EN 61000-6-4 ### Pros - **European efficiency: 97.4%** - The confirmed European efficiency rating is 97.4% (peak maximum of 98.1%), which places the DNS G4 series above the typical median of 1-phase inverters ranging from 3-6 kW (~96.5-97.0%). European efficiency is a key indicator of actual performance in moderate climates, not just in laboratory conditions. - **IP66 - provides higher protection than the industry standard** - An IP66 degree of protection indicates complete resistance to dust and strong water jets, while many comparable 1-phase inverters (e.g., SMA Sunny Boy from previous series, some Sungrow SG models) offer a standard IP65 rating. This translates to improved durability when installed outdoors or in high-humidity environments. - **Silent operation (\<25 dB) - convection cooling** - The DNS G4 cooling system relies solely on natural convection (without a fan), which ensures a noise level below 25 dB - comparable to the silence of a room at night. The absence of moving parts directly translates to a lower risk of mechanical failure and a longer lifespan for the device. - **Built-in Rapid Shutdown + optional AFCI (Arc Fault Circuit Interrupter)** - The DNS G4 features an integrated rapid shutdown transmitter that complies with fire safety regulations. An optional arc fault detector (AFCI) based on AI technology detects arc faults and automatically interrupts the circuit, notifying the monitoring system - this is a premium feature that is rarely offered without an additional cost by competitors in the residential segment. - **BNEF Tier 1, 100 GW of installed capacity by Q1 2026** - GoodWe maintains its Tier 1 status from BloombergNEF for inverter manufacturers continuously until Q1 2026, and has a total installed capacity of over 100 GW globally. The Tier 1 bankability requirement is mandated by most banks and financial institutions that finance PV installations, which reduces the risk of service and technical support availability over a 10-15-year period. - **Extensive connectivity: WiFi, LAN, BT, 4G, Modbus/SunSpec** - The series offers a complete set of communication interfaces (WLAN, LAN, Bluetooth, 4G, RS485) with support for Modbus and SunSpec protocols. This allows for integration with both the manufacturer's mobile application and external energy management systems (EMS) and building automation systems without the need for additional modules. ### Cons - **The standard warranty is only 5 years.** - The standard manufacturer's warranty is 5 years. Extending it to 10 years requires active registration of the device and meeting the distributor's terms, while Fronius offers a 10-year warranty automatically as standard. For a prosumer, this means an additional formality, and the terms of the extension may vary depending on the Polish importer. ## About this series The GoodWe DNS G4 series are single-phase grid-tie inverters designed for home PV systems, where a high operational culture and safety are paramount. What sets them apart is the **dual MPPT**, which facilitates system design for various roof orientations and helps better utilize the energy yield when parts of the modules are intermittently shaded. In practice, this means a more stable energy production throughout the day and greater flexibility in string selection. The DNS G4 prioritizes **high European efficiency**, meaning truly effective operational performance under Poland’s typical climatic conditions, not just in laboratory tests. They also feature **premium-class protections**-including AC and DC surge protection and optional arc detection-which enhance installation safety. Regarding user support, **monitoring and communication** are crucial-support for modern remote monitoring solutions (e.g., Wi-Fi and the app). This series is tailored for prosument\* and small-scale projects seeking a reliable, quiet inverter with comprehensive grid certification and solid warranty terms. \\\* Prosument - a term referring to individuals or entities that both produce and consume electricity. ## Questions ### What warranty does GoodWe offer on its DNS G4 inverters? The standard warranty for GoodWe DNS G4 inverters is 5 years. The manufacturer offers the option to extend the warranty coverage to 10 years under certain conditions, which is a significant advantage for long-term operation of prosumer installations. GoodWe is a Tier 1 manufacturer, which means a stable financial position and the real ability to handle warranty claims throughout the coverage period. ### What power ranges are available for the GoodWe DNS G4 inverters, and which model is best suited for a home? The DNS G4 series is available in 3 kW, 3.6 kW, 4.2 kW, 5 kW, and 6 kW versions. For a typical single-family home with a 6-10 kWp installation, the 5 kW or 6 kW models are most commonly chosen. If the power of the PV installation is smaller or the budget is limited, the 3-4.2 kW models are more than sufficient. It is advisable to consult with an installer regarding the appropriate power level, taking into account future expansion of the system. ### How does the dual MPPT system in the GoodWe DNS G4 work, and when is it important? Two independent MPPT trackers allow you to connect two separate sets of solar panels with different orientations or angles, such as a south-facing and an east-facing array. Each tracker independently searches for the point of maximum power, so the shading of one array does not reduce the performance of the other. The MPPT voltage range is 80-550 V, and the low starting voltage of 80 V allows the inverter to operate even in low-light conditions. ### Does the GoodWe DNS G4 support remote monitoring via a mobile app? Yes, the DNS G4 inverter works with the SolarGo app (available for Android and iOS), which connects to the device via WiFi or Bluetooth. The app allows you to monitor current production, historical data, alerts, and configure parameters. Data is also accessible through the SEMS Portal platform in a web browser. The WiFi dongle can be integrated or provided as an optional accessory depending on the model. ### Can the GoodWe DNS G4 inverter be mounted outdoors? Yes, the DNS G4 enclosure has an IP65 rating, which means it is completely protected against dust and water jets. The inverter can be mounted both inside and outside the building, for example, on the garage wall or boiler room. This reduces the length of DC cable runs between the panels and the inverter, which minimizes losses and installation costs. ### Does the GoodWe DNS G4 have arc fault protection (AFCI)? Yes, the G4 series of DNS offers an optional arc fault detection feature based on AI algorithms. This feature detects dangerous arcs on the DC side, which can lead to fire, and sends an alarm through the monitoring system while simultaneously disconnecting the circuit. It is advisable to inquire with the installer about the availability of this feature in a specific model, as arc fault detection may be implemented as an additional module or activated through a license. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/inverters/gw-dns-g4-3-6kw-1e854820065b.pdf) ## Alternatives | Inverter | Rated AC | Euro efficiency | MPPT | Weight | Difference | | --- | --- | --- | --- | --- | --- | | [SolarEdge SE6000H (HD‑Wave, single phase)](https://comparepv.com/inverter/solaredge-solaredge-se6000h-hd-wave-single-phase) | 6 kW | 99.0% | | 10.6 kg | 1.4 kg heavier | | [SolarEdge EV Charging Single Phase Inverter SE6000H (aka H6000SE / SE6000H)](https://comparepv.com/inverter/solaredge-solaredge-ev-charging-single-phase-inverter-se6000h-aka-h6000se-se6000h) | 6 kW | 99.0% | | 11.9 kg | 2.7 kg heavier | | [Solis-3P6K-4G](https://comparepv.com/inverter/ginlong-solis-solis-3p6k-4g) | 6 kW | 97.8% | 2 | 18.0 kg | 8.8 kg heavier | | [Ginlong Solis S6-GR3P-6K02-NV-ND](https://comparepv.com/inverter/ginlong-solis-s6-gr3p-6k02-nv-nd) | 6 kW | 97.7% | 2 | 14.7 kg | 5.5 kg heavier | | [SMA Solar STP6.0-3AV-40 (Sunny Tripower 6.0)](https://comparepv.com/inverter/sma-solar-stp6-0-3av-40-sunny-tripower-6-0) | 6 kW | 97.6% | 2 | 17.0 kg | 7.8 kg heavier | | [GoodWe GW6K-DT](https://comparepv.com/inverter/goodwe-gw6k-dt) | 6 kW | 97.6% | 2 | 15.0 kg | 5.8 kg heavier | | [Growatt MOD 6000TL3-X](https://comparepv.com/inverter/growatt-mod-6000tl3-x) | 6 kW | 97.5% | 2 | 12.5 kg | 3.3 kg heavier | | [Growatt MOD 6000TL3-X2 (Pro)](https://comparepv.com/inverter/growatt-mod-6000tl3-x2-pro) | 6 kW | 97.5% | 2 | 14.6 kg | 5.4 kg heavier | --- Source: https://comparepv.com/inverter/goodwe-gw6k-dns-cn-g40