--- title: "Huawei SUN2000-33KTL-A Grid-tie Inverter: Specs & Datasheet | ComparePV" description: "Huawei SUN2000-33KTL-A 30 kW grid-tie inverter. Specs: 98.4% European efficiency, 4 MPPT, 1100 V max DC input, 62.0 kg." source: "https://comparepv.com/inverter/huawei-sun2000-33ktl-a" updated: 2026-01-16 --- # Huawei SUN2000-33KTL-A ## Identity - **Manufacturer:** Huawei - **Model:** SUN2000-33KTL-A - **Series:** SUN2000-KTL-A - **Rated AC power:** 30 kW - **Type:** Grid-tie - **Phases:** Three-phase ## How it compares Compared against 227 inverters from 12 to 30 kW. Ranks are within that class. | Measure | This inverter | Class median | Standing | Rank in class | | --- | --- | --- | --- | --- | | European efficiency | 98.4% | 98.0% | Strong - top 10% | 16 | | MPPT trackers | 4 | 2 | Strong - top 6% | 1 | | Max DC input voltage | 1100 V | 1000 V | Strong - top 21% | 1 | | Weight per kW | 2.1 | 1.6 | Typical | 153 | | Warranty | - | 5 yrs | | | ## Specification ### AC output - **Rated AC power:** 30 kW - **Max apparent power:** 33.00 kVA - **Phases:** Three-phase - **Nominal AC voltage:** 400 V - **Max AC current:** 48.0 A - **Grid frequency:** 50 Hz - **Power factor:** 0.8 leading (LG) ... 0.8 lagging (LD) - **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:** 4 - **Max input current per MPPT:** 22.0 A - **Max short-circuit current per MPPT:** 30.0 A ### Efficiency - **European efficiency:** 98.4 % - **Max efficiency:** 98.6 % ### Physical - **Dimensions:** 550 × 930 × 283 mm - **Weight:** 62.0 kg - **Enclosure:** IP65 - **Cooling:** natural - **Operating temperature:** -25 to 60 °C - **Max humidity:** 100 % - **Max altitude:** 4000 m ### Connectivity and protection - **Interfaces:** Bluetooth, Display - **Protocols:** Bluetooth (via app), USB, RS485, PLC (Power Line Communication) - **Protection:** DC switch, Surge protection ### Warranty and certificates - **Certifications:** EN 62109-1/-2, IEC 62109-1/-2, IEC 62116, IEC 61727, NB/T 32004-2013, VDE-AR-N-4105, VDE 0126-1-1, BDEW, G59/3, UTE C 15-712-1, CEI 0-16, CEI 0-21, C10/11, EN 50438-Turkey ### Pros - **Dual Independent MPPT - String Layout Flexibility** - Two separate MPPT trackers allow two PV strings with different orientations or partial shading profiles to operate independently, without compromising each other's maximum power point. In real-world Polish conditions - characterized by variable irradiance and multi-pitch roofs - this translates into measurably higher annual energy yield compared to single-MPPT inverters of equivalent rated power. - **Peak Efficiency ~98.6%** - The KTL-A series achieves a peak efficiency of 98.6%, which at its launch (documentation dated 2018-2019) placed it among the top performers in the three-phase string inverter segment. The high European efficiency rating delivers better real-world performance under the variable irradiance conditions typical of Poland. - **Tier-1, Bankable Manufacturer - #1 Globally** - Huawei has led the global PV inverter market for over a decade, with cumulative shipments exceeding 176 GW through 2024, and is classified as Tier-1 by BNEF. This status ensures project bankability and provides access to a stable service network in Poland through an authorized distributor channel. - **FusionSolar Monitoring with Built-In Wi-Fi** - The built-in Wi-Fi module enables remote performance monitoring via the FusionSolar app without any additional communication hardware. The FusionSolar platform supports remote diagnostics and data export, reducing service response times and simplifying reporting for prosumers and small commercial installations. - **Transformerless Design (IP65)** - The galvanically isolated, transformerless topology results in reduced weight, higher efficiency, and a compact form factor. The IP65-rated enclosure provides full protection against dust ingress and water jets, allowing installation in both indoor and outdoor environments. ### Cons - **Legacy Generation - End-of-Life Risk** - The KTL-A series documentation dates to 2018-2019, and at least three successor generations (M0, M1, M2) are currently available on the market. The series is likely no longer in active production, which may limit spare parts availability and the duration of active technical support from the manufacturer. - **5-Year Warranty vs. 10 Years on Successor Models** - The standard warranty for the KTL-A series was 5 years, whereas its direct successors (SUN2000-KTL-M0, M1) carry a 10-year factory warranty. For an investor, this means half the warranty coverage at a comparable purchase price when sourcing the unit from secondary market stock or remaining inventory. - **No AFCI (Arc-Fault Circuit Interrupter) Protection** - The KTL-A series does not include certified arc-fault circuit interruption (AFCI), a feature introduced in the SUN2000-KTL-M1 series. The absence of AFCI may be a limiting factor for installations subject to enhanced fire protection requirements or insurers that mandate this functionality. ## About this series Huawei SUN2000-KTL-A series are transformerless grid-tie inverters, designed for installations prioritizing stable grid operation and high performance. The key advantage lies in their two independent MPPTs, which simplify design for various roof orientations or partial shading, enabling the inverter to independently optimize the maximum power point for two separate strings, rather than compromising for a single point. This translates to higher energy yields in typical Polish conditions. Notable is their high European efficiency, meaning real-world effectiveness across varying weather and temperature conditions - crucial not just in labs, but especially for year-round energy production. Monitoring is convenient: built-in WiFi and optional communication solutions (e.g., via dongle) allow remote monitoring of operation in the FusionSolar app, diagnostics, and quick after-sales service. This makes them an excellent choice for modern residential and small commercial installations, where control, string flexibility, and compliance with safety requirements (including EN/IEC 62109) are essential. ## Questions ### Is the Huawei SUN2000-KTL-A inverter suitable for a roof with two differently oriented roof sections? Yes, this is one of the key strengths of this series. Two independent MPPT trackers allow a separate string of panels to be connected to each one - for example, one string facing south and another facing west. The inverter tracks the optimal operating point for each string independently, rather than forcing the entire system to settle for a single compromise. In practice, this translates into higher annual energy yields under typical Polish weather conditions. ### What is the real-world efficiency of the Huawei SUN2000-KTL-A inverter? The SUN2000-KTL-A series achieves a European efficiency of up to 98.3%, which reflects actual performance under the variable irradiance conditions characteristic of Poland. Peak efficiency reaches 98.6%. The transformerless design eliminates transformer losses, directly contributing to improved year-round energy production - particularly on overcast days and during the morning and evening hours of system operation. ### How does system monitoring work with the Huawei SUN2000-KTL-A inverter, and do I need additional devices? The inverter has built-in Wi-Fi, so once connected to your home wireless network you can monitor production and operating parameters in real time via the free FusionSolar smartphone app. For installations without Wi-Fi coverage or those requiring wired network transmission, optional communication modules are available in dongle form. The app also supports remote diagnostics and direct contact with the service team. ### What is the warranty period for the Huawei SUN2000-KTL-A inverter, and can it be extended? The standard warranty for the SUN2000-KTL-A series is 5 years. Huawei offers extended warranty coverage in 5-year increments, up to a maximum of 20 years of total protection. It is advisable to purchase the extended warranty at the time of installation, since the service life of a photovoltaic system typically exceeds 25 years. Note that newer Huawei series (M0, M1, M2) already include a 10-year warranty as standard. ### How does the Huawei SUN2000-KTL-A differ from newer series such as the SUN2000-KTL-M1 or M2? The SUN2000-KTL-A is an earlier generation of Huawei inverters. The newer M1 and M2 series offer, among other improvements, higher string input currents (beneficial for high-wattage panels), a longer standard warranty (10 years), and - in certain variants - support for energy storage in hybrid configurations. The KTL-A series remains a proven and reliable choice for installations where battery storage expansion is not planned. ### Does the Huawei SUN2000-KTL-A inverter comply with Polish and European safety standards? Yes, the SUN2000-KTL-A series is certified in accordance with EN/IEC 62109, the safety standard for power conversion equipment used in photovoltaic systems. This certification authorizes the inverter for grid-tied on-grid operation on the Polish and EU-wide electricity network. The inverter incorporates the required AC and DC protection features, as well as an automatic anti-islanding disconnection function upon loss of grid voltage. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/inverters/5b44360a0983e-0a5e2e2d74e4.pdf) ## Alternatives | Inverter | Rated AC | Euro efficiency | MPPT | Weight | Difference | | --- | --- | --- | --- | --- | --- | | [Growatt MID 30KTL3-X2 (Pro.E)](https://comparepv.com/inverter/growatt-mid-30ktl3-x2-pro-e) | 30 kW | 98.6% | 3 | 24.0 kg | -1 MPPT, 38.0 kg lighter | | [Growatt MID 30KTL3-X](https://comparepv.com/inverter/growatt-mid-30ktl3-x) | 30 kW | 98.5% | | 29.5 kg | 32.5 kg lighter | | [Growatt MID 30KTL3-X2-1](https://comparepv.com/inverter/growatt-mid-30ktl3-x2-1) | 30 kW | 98.5% | | 31.0 kg | 31.0 kg lighter | | [GoodWe GW30K-MT](https://comparepv.com/inverter/goodwe-gw30k-mt) | 30 kW | 98.5% | | 40.0 kg | 22.0 kg lighter | | [Huawei SUN2000-30KTL-M3](https://comparepv.com/inverter/huawei-sun2000-30ktl-m3) | 30 kW | 98.4% | 4 | 43.0 kg | 19.0 kg lighter | | [Sungrow SG30T-P2-CN](https://comparepv.com/inverter/sungrow-sg30t-p2-cn) | 30 kW | 98.3% | 3 | 25.0 kg | -1 MPPT, 37.0 kg lighter | | [Sungrow SG30CX-P2](https://comparepv.com/inverter/sungrow-sg30cx-p2) | 30 kW | 98.3% | 3 | 38.0 kg | -1 MPPT, 24.0 kg lighter | | [SOFAR 30KTLX-G3](https://comparepv.com/inverter/sofar-solar-sofar-30ktlx-g3) | 30 kW | 98.2% | | 36.0 kg | 26.0 kg lighter | --- Source: https://comparepv.com/inverter/huawei-sun2000-33ktl-a