Name: 3-6kW Hybrid Solar Inverter
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3-6kW Hybrid Solar Inverter

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Product Description

3-6kW Hybrid Solar Inverter

Certifications: IEC 62109, IEC 61727, IEC 61000, VDE, CE, EN 50438, AS/NZS 4777, UL

Rated Output Power: 3kW / 3.6kW / 4kW / 4.6kW / 5kW / 6kW

Max PV Input Power: 6kW ~ 12kW (1.5~2× rated power oversizing)

Number of MPPT: 1~2

Battery Type: Lithium-ion / Lead-acid / Gel battery

Battery Voltage Range: 40V ~ 60V (low voltage) / 80V ~ 450V (high voltage)

Protection Level: IP65 / IP66

Grid/Off-Grid Switching Time: ≤10ms

Product Description

The 3-6kW Hybrid Solar Inverter is an intelligent energy storage inverter designed for residential and small commercial applications. It integrates PV grid-connected generation, battery energy storage management, and off-grid backup power into a single unit, serving as the core control unit of a home energy management system. The system combines PV DC-DC conversion, battery charge/discharge management, grid-connected inversion, off-grid inversion, and intelligent Energy Management System (EMS), supporting multi-directional energy flow and intelligent scheduling among PV, battery, grid, and loads.

The product features a dual MPPT design supporting 18A+18A PV input current, compatible with high-power PV modules. Maximum PV input power can reach 2× the rated power, significantly improving PV utilization. The inverter achieves a maximum efficiency of 97.6%, MPPT tracking efficiency exceeding 99%, and Euro efficiency of 96.5%, with no-load loss below 10W and standby loss below 3W, effectively reducing system self-consumption. Equipped with an intelligent Time-of-Use (TOU) charging/discharging mode, it automatically optimizes charge/discharge strategies based on tariff periods, reducing user electricity costs.

The system supports grid-connected, off-grid, and hybrid operating modes, with off-grid switching time ≤10ms. During grid outages, it automatically switches to battery power, ensuring uninterrupted operation of critical loads such as refrigerators, lighting, and routers. Battery compatibility is strong, supporting lithium-ion, lead-acid, and gel batteries, with lithium-ion charging strategies adaptive to BMS. The system supports up to 16 units in parallel, flexibly expandable to hundreds of kW, suitable for residential, small commercial, communication base stations, and off-grid areas.

Application Scenarios

Residential PV-Storage Systems — Works with rooftop PV modules and low-voltage battery packs to achieve PV self-consumption, surplus storage, and peak-valley arbitrage, boosting home energy self-sufficiency to over 80%

Home Emergency Backup Power — Automatically switches to off-grid supply within ≤10ms during grid outages, providing uninterrupted power for critical loads such as refrigerators, lighting, routers, and security systems

Small Commercial & Office Spaces — Suitable for small shops, offices, and clinics, reducing peak demand charges and improving power supply reliability

Communication Base Stations & Remote Area Power Supply — Supports off-grid and weak-grid operation with diesel generator interface, suitable for stable power supply in areas with unstable or no grid coverage

PV-Storage-Charging Integrated Systems — Collaborates with EV chargers to intelligently match PV generation, storage regulation, and charging loads, mitigating charging load impact on the grid

Virtual Power Plant (VPP) & Demand Response — Supports remote firmware upgrades and grid dispatch, connectable to VPP platforms for demand response and power market trading

Product Parameters

The following are general specifications for mainstream 3-6kW single-phase hybrid inverters:

Category	Item	Specification
PV Input Parameters	Max PV Input Power	6,000W ~ 12,000W (1.5~2× rated power)
	Max PV Input Voltage	500V / 600V
	MPPT Voltage Range	125V ~ 425V / 80V ~ 550V (varies by model)
	Start-up Voltage	90V / 100V / 125V
	Rated PV Input Voltage	360V / 370V
	Max Input Current per MPPT	16A / 18A / 21A
	Max Short-Circuit Current per MPPT	20A / 23A / 27A
	Number of MPPT	1 / 2
	Strings per MPPT	1 / 1+1
Battery Parameters	Battery Type	Lithium-ion / Lead-acid / Gel
	Rated Battery Voltage	48V
	Battery Voltage Range	40V ~ 60V (LV) / 80V ~ 450V (HV)
	Max Charge/Discharge Current	60A ~ 140A (varies by model)
	Max Charge Power	3,000W ~ 6,000W
	Max Discharge Power	3,000W ~ 6,300W
	Li-ion Charging Strategy	Self-adaptive to BMS
AC Output (Grid-Connected)	Rated Output Apparent Power	3,000VA / 3,680VA / 4,600VA / 5,000VA / 6,000VA
	Max Output Apparent Power	3,300VA ~ 6,600VA
	Rated Output Voltage	220V / 230V / 240V
	Rated Output Frequency	50Hz / 60Hz
	Rated Output Current	13.7A / 16.4A / 22.8A / 27.3A
	Max Output Current	15A / 18A / 25A / 30A
	Power Factor Adjustable Range	0.8 leading ~ 0.8 lagging
	Total Harmonic Current Distortion	＜3%
AC Output (Off-Grid/Backup)	Rated Backup Power	3,000W ~ 6,000W
	Peak Output Power	2× rated power for 10s
	Grid/Off-Grid Switching Time	≤10ms
	Off-Grid Overload Capability	101%-110% for 30s; ＞110% for 10s
Efficiency Parameters	Max Efficiency	97.4% ~ 97.6%
	Euro Efficiency	96.5% ~ 96.8%
	MPPT Tracking Efficiency	＞99%
	Battery-to-Load Efficiency	95.1%
General Parameters	Protection Level	IP65 / IP66
	Operating Temperature	-25℃ ~ +60℃ (derating ＞45℃)
	Noise	＜35dB (natural cooling)
	Cooling Method	Natural cooling
	Dimensions (W×H×D)	Approx. 330×580×232mm (varies by model)
	Weight	Approx. 20~28kg
	Max Operating Altitude	≤3,000m
Protection Functions	DC Protection	DC reverse polarity protection, DC switch, insulation impedance detection, AFCI arc protection (optional), Type II SPD (DC side)
	AC Protection	AC overcurrent protection, AC overvoltage protection, AC short circuit protection, anti-islanding protection, residual current detection
	Other Protection	Over-temperature protection, DC component monitoring, ground fault protection
Communication	Communication Interfaces	RS485 / CAN / Wi-Fi / GPRS / Bluetooth / 4G / LAN (optional)
	Communication Protocols	Modbus TCP/RTU, CAN 2.0
	Monitoring	APP / Cloud platform / Local touchscreen
	Parallel Units	Up to 16 units in parallel
	Display	4.3-inch color touch LCD

System Components

The system consists of a PV DC-DC conversion unit (with dual MPPT maximum power point tracking modules), battery charge/discharge management unit (supporting adaptive management of lithium-ion/lead-acid/gel batteries), grid-connected inversion unit (DC-AC bidirectional conversion), off-grid inversion unit (pure sine wave output), intelligent Energy Management System (EMS) control unit, protection and monitoring unit (including AFCI arc protection, anti-islanding protection, insulation impedance detection, and Type II SPD), human-machine interface module (color touch LCD and communication interfaces), and thermal management system (natural cooling). The system supports multi-directional energy flow and intelligent scheduling among PV, battery, grid, and loads, interconnecting with cloud monitoring platforms via RS485/CAN/Wi-Fi/4G interfaces for remote monitoring, strategy scheduling, and firmware upgrades.

Factory Display

FAQ

Q : How much money can a C&I energy storage system save my business?
A : Savings depend on your electricity consumption, local peak/off-peak price differentials, and system capacity. For a 215kWh system with one charge-discharge cycle per day, assuming a price differential of $0.10/kWh, a single cycle can save approximately $21.50. Actual returns vary by local utility rates and load profiles. We can provide a customized ROI analysis for your business.
Q : How do I choose the right storage capacity for my business?
A : Capacity selection is based on two key factors: peak load power (determines PCS rating) and energy shifting demand (determines battery capacity). Typically, we analyze your past 12 months of utility bills to calculate maximum demand and off-peak charging needs. We recommend leaving about 20% capacity margin for future load growth.
Q : What is the typical payback period for a C&I ESS?
A : The payback period for C&I energy storage projects is typically 3–6 years, depending on local peak/off-peak price differentials, system costs, government incentives, and your company's self-consumption capability. With declining battery costs and ongoing power market reforms, payback periods continue to shorten.
Q : Liquid-cooled vs. air-cooled – which should I choose?
A : Here's a quick comparison:
Liquid-cooled series: Provides precise thermal control with temperature differences maintained within < 3°C, significantly extending battery cycle life and improving efficiency in high-temperature environments. Ideal for high-density, high-power projects.
Air-cooled series: Mature technology with lower upfront investment and simpler maintenance. Suitable for small to medium-sized projects or cost-sensitive applications.