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STT-4K~25KTL

Product catalog summary

Overview: The document provides technical specifications and features of the Sunways Three Phase Inverter with Dual MPPT, models STT-4K to STT-25KTL. These inverters are designed for high efficiency and reliability in various installation environments.

Key Features:

High reliability with effective heat dissipation and integrated lightning protection for both DC and AC.
Adaptability to complex power grids and various environmental conditions due to high anti-corrosion technology and wide operating temperature and altitude ranges.
High efficiency with a maximum of 98.6% and European weighted efficiency of 98.2%.
Longer working hours enabled by lower start-up voltage and wider MPPT range.
Supports up to 10% continuous output overloading capacity and is compatible with high-power panels.
Offers both wireless and wired internet connectivity options and supports remote upgrading.
Easy configuration via App or OLED display.

Technical Specifications:

Input: Maximum input power ranges from 6,400W to 40,000W depending on the model. The start-up voltage is 200V, with a maximum DC input voltage of 1,100V and an MPPT voltage range of 200-950V.
Output: Rated output power ranges from 4,000W to 25,000W. The rated output voltage is 230/400V with a frequency of 50/60Hz. The power factor ranges from 0.8 leading to 0.8 lagging.
Efficiency: Maximum efficiency ranges from 98.1% to 98.6%, with MPPT efficiency consistently at 99.9%.
Protection: Includes integrated protections such as DC reverse polarity, insulation resistance, surge, over-temperature, residual current, anti-islanding, AC short-circuit, and AC over-voltage protection.
General Data: The inverters have a protection degree of IP65, operate in temperatures from -30°C to 60°C, and support altitudes up to 4000m. They feature natural convection and smart fan cooling with noise levels below 40dB.

Compliance and Manufacturing: The inverters comply with various international standards including IEC62109, VDE4105, and EN50549. They are manufactured in China.

Catalog excerpts

Sunways Three Phase with Dual MPPT S T T- 4 K ~ 2 5 K T L SAFE & RELIABLE High reliability due to good heat dissipation design High yield with Max. 98.6% efficiency Integrated lightning protection for both DC and AC Adapt to complex power grid High anti-corrosion ability with aluminum alloy die casting technology Wider working temperature and altitude, adapt to various installation environments HIGH YIELD European weighted efficiency 98.2% Longer working hours due to the lower start-up voltage and wider MPPT range Up to 10% continuous output overloading capacity With a max input current of 15A, compatible with high-power panels Support wireless and wired internet connection (RS485， WiFi/GPRS/LAN optional) Remote upgrading available Fast and easy configuration via App or OLED display

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Technical Parameters

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STT-4K~25KTL

STT-4K~25KTL

Catalog excerpts

All Ningbo Sunways Technologies Co., Ltd. catalogs and technical brochures