1stess 6.2kW 48V Hybrid Solar Inverter with 120A MPPT Charger
The 1stess 6.2kW hybrid solar inverter combines solar charging, 48V battery integration and single-phase AC output for residential energy storage and off-grid solar systems. With a built-in MPPT solar charger, pure sine wave output and support for up to 12 units in parallel, it provides a configurable inverter platform for installers, importers and solar EPC contractors.
Solar Charging for PV Battery Systems
Use available solar power to charge a compatible battery system and support daily energy needs. The built-in MPPT solar charger supports a maximum solar charging current of 120A and a maximum PV array power of 6,500W.
- Maximum solar charging current: 120A
- Maximum PV array power: 6,500W
- PV array MPPT voltage range: 60-500VDC
For project design, verify PV string voltage and current against the inverter limits, including open-circuit voltage at the lowest expected site temperature.
Pure Sine Wave Output for Essential Loads
With 6.2kW rated output and a pure sine wave AC waveform, this 48V solar inverter can support appropriately sized household and small-business loads. Application examples include home lighting, networking equipment, office electronics and retail point-of-sale systems. Load selection should account for total operating power and equipment starting requirements.
- Rated output: 6.2kW
- Single-phase output: 220 / 230 / 240VAC
- Output waveform: pure sine wave
Parallel Expansion for Solar EPC Projects
Support changing project requirements with up to 12 compatible units operating in parallel. This parallel solar inverter platform gives contractors a way to plan system expansion around site demand. Parallel installations require coordinated inverter configuration, battery capacity, protection and cabling. Confirm the intended system arrangement before specifying the project.
Integration with Compatible Lithium Batteries
The 48V battery platform supports lithium battery communication through RS485. RS232 and RS485 interfaces provide communication options for system integration, while battery activation can be initiated through PV or utility power. For a lithium battery inverter installation, confirm the battery voltage range, BMS protocol and charge/discharge limits before commissioning.
Applications Matched to Buyer Needs
| Application |
Buyer Requirement |
Relevant Product Features |
| Residential solar energy storage |
Combine solar generation with a compatible battery system |
MPPT charging and a 48V battery platform |
| Off-grid homes |
Supply selected loads where utility power is unavailable |
PV and battery operation with pure sine wave output |
| Small-business backup |
Support lighting, POS terminals and networking during outages |
6.2kW output, subject to load and battery sizing |
| Solar EPC projects |
Plan for larger or changing system requirements |
Up to 12-unit parallel capability |
| Installer and distributor projects |
Check system fit before procurement |
Defined electrical ratings and battery communication interfaces |
Key Technical Specifications
| Parameter |
Specification |
| Rated output |
6.2kVA / 6.2kW |
| Battery voltage |
48VDC |
| AC output |
220 / 230 / 240VAC, single phase |
| Output waveform |
Pure sine wave |
| Solar charger type |
MPPT |
| Maximum solar charging current |
120A |
| Maximum PV array power |
6,500W |
| PV array MPPT voltage range |
60-500VDC |
| Maximum PV open-circuit voltage |
500VDC |
| Parallel capability |
Up to 12 units |
| Lithium battery communication |
RS485 |
| Communication interfaces |
RS232 / RS485 |
| Ingress protection |
IP21 |
| Net weight |
9.6kg |
Indoor Installation and Project Planning
The IP21 enclosure is intended for a suitable indoor installation environment. Provide ventilation, service access and appropriate electrical protection in accordance with the installation manual. Backup duration depends on the connected battery capacity, usable energy and operating load. Confirm these requirements when selecting components for a solar backup power system.
Discuss Your Inverter Requirements with 1stess
Send your destination market, application, AC voltage, load profile, PV array details, battery model and required quantity. For parallel projects, include the planned unit count and system arrangement. Contact 1stess to confirm the inverter configuration and request a project quotation.
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