Single-Phase String Inverter

The HYX-S3K/3K6/4K/4K6/5K/6K-S series of single-phase string inverters are suitable for residential and small commercial photovoltaic power generation systems. They offer a power range of 3kW to 6kW, adapting to a variety of module configurations. They utilize maximum power point tracking technology to effectively improve power generation efficiency under varying sunlight conditions. They feature a wide voltage input range and support multi-channel string input, minimizing the impact of shadowing. Integrated DC safety protection and anti-islanding features ensure compliance with grid-connected safety standards. A built-in Wi-Fi or 4G communication module supports remote monitoring and operation and maintenance management. The aluminum housing design, with an IP65 rating, is suitable for outdoor installation. The compact design and flexible installation options make it suitable for various application scenarios.

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Product Parameters

Specification	HYX-S3K-S	HYX-S3K6-S	HYX-S4K-S	HYX-S4K6-S	HYX-S5K-S	HYX-S6K-S
DC Input
Maximum Input Power	4,800W	5,760W	6,400W	7,360W	8,000W	9,600W
Maximum Input Voltage	600V
Rated Input Voltage	360V
Startup Voltage	100V
MPPT Operating Voltage Range	80～560V
MPPT Full-Load Voltage Range	200～500V
Maximum Input Current	18A / 18A
Maximum Input Short-Circuit Current	24A / 24A
Number of MPPT Paths	2
Allowed String Input per MPPT Path	1/1
AC Output
Rated Output Power	3,000W	3,600W	4,000W	4,600W	5,000W	6,000W
Maximum Apparent Power	3,300VA	3,960VA	4,400VA	5,060VA	5,500VA	6,600VA
Rated Output Voltage	220V / 230V / 240V, 1/N/PE
Output Voltage Range	207～256V
Rated Output Frequency	50Hz / 60Hz
Rated Output Current	13.6A	16.4A	18.2A	20.9A	22.7A	27.3A
Maximum Output Current	15.0A	18.0A	20.0A	23.0A	25.0A	30.0A
Power Factor	>0.99 (Default) / 0.8 Leading ... 0.8 Lagging
Total Harmonic Distortion (at Linear Load)	<3%
Conversion Efficiency
Maximum Efficiency	98.2%
European Efficiency	97.6%
MPPT Efficiency	99.9%
Protection Information
DC Reverse Polarity Protection	Yes
DC Switch	Yes
DC Bus Over-Voltage Protection	Yes
DC Over-Current Protection	Yes
AC Short-Circuit Protection	Yes
AC Over-Voltage Protection	Yes
AC Over-Current Protection	Yes
AC Over-Frequency / Under-Frequency Protection	Yes
DC Surge Protection	Level 2
AC Surge Protection	Level 2
Anti-Islanding Protection	Yes
AFCI (Arc-Fault Circuit Interrupter)	Yes
Basic Information
Operating Temperature	-25～+60℃
Relative Humidity	0~100 %RH
Maximum Altitude	4,000m
Cooling Method	Natural Heat Dissipation
Human-Machine Interaction	LED Indicators; WLAN / App
Communication Method	RS485 / 4G / WIFI
Weight	11.6kg
Dimensions (Width × Height × Thickness)	340×360×136mm
Inverter Topology	Transformerless
Protection Level	IP66
Over-Voltage Category	PV Ⅱ / AC Ⅲ

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About Us

Zhejiang Jingkai New Energy Technology Co., Ltd.

Jingkai New Energy is a globally leading manufacturer and solution provider of new energy products. The company specializes in the R&D, production, and sales of high-efficiency solar modules, inverters, energy storage equipment, photovoltaic racks, photovoltaic cables, charging piles, and complete power equipment. It also serves as an investor, developer, and EPC contractor for photovoltaic, wind power, energy storage, hydrogen energy, and charging pile projects.

Since its establishment in 2017, Jingkai New Energy has established production and R&D bases in multiple countries and regions worldwide through diversified development strategies and market expansion. It stands as a globally comprehensive and leading new energy enterprise.

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