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Marstek Mars I Plus three-phase hybrid inverter 12 kW 4 MPPT for residential storage
The Marstek Mars I Plus three-phase is a 12 kW hybrid inverter that packs seven functions into one device: hybrid conversion, four MPPT trackers, V-Boost high-voltage battery management, emergency power supply, local EMS, SG-Ready heat pump control and EV charging readiness. It accepts up to 24 kW of solar and is also available in 8 kW and 10 kW sizes.
It is the core of a residential or small-business storage system with substantial three-phase loads. V-Boost up to 1000 V with real-time cell balancing removes the barrel effect between battery modules, while EPS kicks in within 10 ms. The 10.1-inch HD touchscreen gives access to live data, open APIs allow integration with third-party EMS platforms, and up to four systems can run in parallel for 48 kW.
Key features
Technical specifications
| Feature | Value |
|---|---|
| Product code | Mars I plus ESS inverter |
| Device type | Three-phase hybrid inverter for storage systems |
| Rated AC power | 12 kW (also available in 8 kW and 10 kW) |
| Number of phases | Three-phase |
| PV input power | up to 24 kW |
| Number of MPPTs | 4, starting at 200 V |
| Battery voltage (V-Boost) | up to 1000 V, with real-time cell balancing |
| Managed storage capacity | 5.12 kWh to 30.72 kWh (up to 6 modules) |
| EPS response time | < 10 ms |
| EV charging (optional) | up to 25 kW DC / 22 kW AC |
| V2X function | up to 12 kW |
| Heat pump control | SG-Ready |
| Energy management | Local EMS with 10.1" HD touchscreen |
| Parallel operation | up to 4 systems: 48 kW and 122.88 kWh |
| Generator | diesel generator ready in off-grid mode |
| Communication | Bluetooth, Wi-Fi, open API for third-party EMS |
| Ingress protection | IP65 |
| Noise level | < 30 dB |
| Operating temperature | -25 °C to +60 °C |
| Warranty | 10 years |
Documentation
PDFMarstek Mars I Plus - Product Introduction (PDF)Official manufacturer documentPDFMarstek Mars I Plus Three-Phase - Brochure (PDF)Official manufacturer documentInstallation and wiring must be carried out by qualified personnel in accordance with the applicable standards and the electrical design of the system.