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Sungrow Power Supply
SG3K/3K6/4K/4K6/5K/6K-D

SG3K/3K6/4K/4K6/5K/6K-D

Product catalog summary

Overview: This document provides technical specifications and features of the Sungrow residential string inverters, models SG3K-D to SG6K-D. These inverters are designed for high efficiency, smart management, safety, reliability, and easy installation.

Specifications:

Efficiency: Industry-leading efficiency of 98.4% with a high DC/AC ratio up to 1.3.
Input (DC): Max PV input voltage is 600 V, with a nominal input voltage of 360 V. The MPP voltage range is 90 V – 560 V, with two MPPTs and a maximum of 20 A input current.
Output (AC): Nominal AC output power ranges from 3000 W to 6000 W, with a nominal AC voltage of 230 Vac and a frequency range of 45 Hz – 65 Hz.
Protection: Includes PV reverse connection protection, AC short circuit protection, leakage current protection, grid monitoring, and overvoltage protection.
General Data: The inverters are transformerless, with an IP65 ingress protection rating, and operate in temperatures from -25 °C to 60 °C. They support natural cooling and have a maximum operating altitude of 4000 m.

Features:

High Yield: Flexible PV string configurations and feature-rich online monitoring via App or Web.
Smart Management: Includes firmware updates, new monitoring features, and energy flow management with a smart meter.
Safe and Reliable: Built-in surge arresters, RCD, and high anti-corrosion rating at C5.
Easy Installation: Push-in connectors, mounting plate with built-in level, and fast commissioning via App or LCD.

Compliance: The inverters comply with various international standards including IEC62109-1, IEC62109-2, IEC62116, and others.

Catalog excerpts

SG3K/3K6/4K/4K6/5K/6K-D Residential String Inverter HIGH YIELD SMART MANAGEMENT Industry leading efficiency of 98.4% Flexible PV string configurations High DC/AC ratio up to 1.3 Feature-rich online monitoring via App or Web Firmware updates & new monitoring features Gain energy flow with Sungrow smart meter EASY INSTALLATION Built-in surge arresters & RCD Cutting-edge technology ensures long life time High anti-corrosion rating at C5 Push-in connectors for time-saving installation Mounting plate with built-in level Fast and easy commissioning via App or LCD CIRCUIT DIAGRAM Inverter Circuit (DC/AC) © 2019 Sungrow Power Supply Co., Ltd. All rights reserved. Subject to change without notice. Version 1.2 Normalized Output Power

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Type designation Input (DC) Max. PV input voltage Min. PV input voltage / Startup voltage Nominal input voltage MPP voltage range MPP voltage range for nominal power Max. number of PV strings per MPPT Max. current for input connector Output (AC) Nominal AC output power Max. apparent AC output power Nominal AC voltage AC voltage range Nominal grid frequency Grid f requency range Total Harmonic Distortion (THD) Power factor Feed-in phases / Connection phases Efficiency Max. efficiency Max. European efficiency Protection PV reverse connection protection AC short circuit protection Leakage current...

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SG3K/3K6/4K/4K6/5K/6K-D

SG3K/3K6/4K/4K6/5K/6K-D

Catalog excerpts

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