Parameter Specifications

LuxpowerTek SNA 3 6K off-grid hybrid solar inverter
Parameter 3K 4K 5K 6K
PV Input
Max. PV Input Power 6 kW 8 kW 9.6 kW
Number of Independent MPPT Inputs 2 (1:1)
Max. PV Input Voltage 500 V
MPPT Voltage Range 120–385 V
Max. PV Input Current per MPPT 17 / 17 A
Battery
Battery Voltage Range 38.4–60 V
Max. Charging / Discharging Current 70 / 70 A 90 / 90 A 110 / 110 A 140 / 140 A
GEN
Rated GEN Input Power 7.37 kW
UPS
Rated Output Power 3 kW 4 kW 5 kW 6 kW
Surge Power, Duration 2 × Rated Power for 5s
Switching Time <7 ms (Single)
General
Max. Parallel Units 16
Dimensions (W × H × D) 330 × 505 × 135 mm
Weight 14.5 kg

The SNA 3-6K guarantees homeowners an uninterrupted power supply, whether connected to the grid or not. It facilitates automatic generator start-up and battery activation, making it perfect for areas with unreliable power sources. With its advanced off-grid and hybrid modes, it not only prioritizes between AC or solar power but also supports simultaneous usage, ensuring efficient utilization of solar and utility power.

FAQ

Product Basics:

The SNA 3–6K is a smart off-grid inverter series designed for residential solar energy storage systems.
It supports solar panels, batteries, grid input, and generators, providing flexible energy management for homes and backup applications.

The SNA 3–6K is primarily designed as an off-grid inverter, but it also supports Hybrid Mode in selected regions and applications.
Unlike traditional grid-tied hybrid inverters, the SNA series is mainly designed for energy independence and backup applications.

Yes. The inverter can connect to the grid for charging batteries, powering loads, or switching power sources.
However, grid export availability depends on local regulations and system configuration.

This depends on local grid regulations and whether Hybrid Mode is enabled.
In some regions with strict grid-tied requirements, the inverter is used only as an off-grid system without exporting power.

Yes. The SNA 3–6K can operate without batteries under certain conditions, depending on PV availability and load conditions.
However, batteries are recommended for stable operation and backup performance.

Yes. The system can be installed first and batteries can be added later.

The inverter supports:
  • Lithium batteries
  • Lead-acid batteries
  • GEL batteries
  • AGM batteries

The SNA series supports communication with many mainstream lithium battery brands.
Please contact LuxpowerTek or your distributor for the latest compatibility list.

Different models support different PV input capacities.
Please refer to the product datasheet for detailed specifications.

Yes. The inverter supports fast switching for backup loads during grid outages.

EPS (Emergency Power Supply) or Backup Output refers to the inverter’s backup power port that continues supplying critical loads during grid outages.

Battery & Generator:

Yes. The inverter supports outdoor installation under proper conditions.
Please avoid:
  • Direct long-term sunlight exposure
  • Flood-prone areas
  • Poor ventilation environments
Depending on the model version:
  • IP20
  • IP65
  • IP66
Please refer to the specific model specifications

Yes. The SNA series supports parallel operation for larger systems.

Depending on the model version, up to 16 units can be connected in parallel.

Yes. Multiple units can be configured for three-phase output.

Yes. The system can support unbalanced load applications in three-phase setups.

Yes. The SNA series supports generator integration.

Yes. The generator can charge batteries through the inverter.

No. The inverter can operate normally without internet connection.
Internet is only required for remote monitoring and firmware updates..

Installation:

The GEN port can be configured for:
  • Generator input
  • Smart Load output
  • AC Coupling
No. The GEN port supports one function at a time.
It is generally recommended to use batteries with:
  • Same brand
  • Same capacity
  • Same age
  • Same SOC
Mixing batteries may affect performance and lifespan.

The inverter may continue operating in voltage-control mode depending on battery configuration.

Yes.Supported lithium battery systems can be automatically awakened by the inverter.

Working Mode:

Hybrid Mode allows the inverter to combine solar, battery, and grid power intelligently for household loads.

Off-grid Mode allows the inverter to supply loads independently from solar panels and batteries.

Yes. The inverter supports Time of Use (TOU) settings.

Yes. The inverter supports Zero Export functionality.

Small export fluctuations may occur due to:
  • CT accuracy
  • Load changes
  • System response time

Yes. The inverter supports Zero Export functionality.

Monitoring & APP:

Yes. The inverter supports remote monitoring through the LuxPower monitoring platform.

Yes. Remote OTA firmware upgrades are supported.

Please check:
  • Internet connection
  • Wi-Fi signal
  • Router settings
  • Dongle status

Yes. Multiple accounts can be authorized to view the same system.

Troubleshooting:

Possible reasons include:
  • Battery protection active
  • Charging disabled
  • Insufficient PV power
  • BMS communication issue
Please check:
  • PV voltage
  • PV breaker
  • PV polarity
  • Solar irradiance
Possible causes:
  • Battery voltage instability
  • Overload
  • Loose wiring
  • Firmware issue
Fan speed depends on:
  • Internal temperature
  • Load level
  • Charging/discharging power

Safety & Protection:

Yes. The inverter includes anti-islanding protection functions.

Selected versions support built-in Type II SPD protection.

AFCI support depends on the model version and market requirements.

Yes. N-PE bonding settings are supported in selected models and configurations.

LuxpowerTek hybrid inverter and battery storage system at a solar home
The SNA single-phase series inverter: your trusted solution for unstable or limited grid power, and the ultimate choice for off-grid applications, empowering energy independence.
  • Off-grid seamless switching
  • 2 MPPTs, Max. PV input: 8kW
  • Wide PV input voltage range: 100~480V
  • Supports up to 16pcs in parallel
  • Max. charging and discharging current 140A
  • Dedicated Port: Supports generator, AC coupling or smart load management for enhanced stability
Connection ports on a LuxpowerTek hybrid inverter

Reliable Power Supply with SNA 3-6K Inverter

Compact, easy to install, and cost-effective, the SNA 3-6K single-phase inverter liberates you from energy worries effortlessly. Prioritizing safety, it incorporates cutting-edge security features to safeguard users and connected systems. With it supports up to 16pcs in parallel, the capacity of the system can range from 5kW to 96kW.
LuxpowerTek SNA EU 6000 LINE Image1 off-grid hybrid solar inverter
The SNA 3-6K guarantees homeowners an uninterrupted power supply, whether connected to the grid or not. It facilitates automatic generator start-up and battery activation, making it perfect for areas with unreliable power sources. With its advanced off-grid and hybrid modes, it not only prioritizes between AC or solar power but also supports simultaneous usage, ensuring efficient utilization of solar and utility power.

Simplify your monitoring experience

With our platform, gain real-time insights, remote management capabilities,and seamless control over your devices. Make informed decisions and optimize performance effortlessly.