Hybrid Inverter Selfa SFH 6.1 6 kW 3F HV Full Backup 2 MPPT WiFi/LAN

The Selfa SFH 6.1 is a next-generation 6 kW three-phase hybrid inverter engineered to serve as the core energy routing hub for modern residential and light-commercial installations. Built for uncompromising reliability, it unifies PV generation, high-voltage battery storage, and redundant backup power into a single streamlined architecture.

High Voltage (HV) Architecture – Maximum Conversion Efficiency

The SFH 6.1 is designed to interface directly with high-voltage (HV) battery storage systems. Compared to traditional 48V low-voltage (LV) setups, HV architecture drastically lowers operational current on the DC bus, cutting thermal dissipation, improving round-trip charge/discharge efficiency, and allowing smaller cable gauges without resistive losses.

True 3-Phase Full Backup – Reliable Island Mode Operation

Grid failures no longer mean site downtime. The integrated Full Backup function delivers balanced three-phase emergency power across the entire installation.

• Seamless transition to island mode keeps critical loads operational (servers, heat pumps, automation, security systems).

• Eliminates manual phase shifting or compromising by restricting backup to isolated single-phase circuits.

Dual Independent MPPT Trackers – Multi-Orientation Optimization

Featuring two independent MPPT trackers with an expansive operational voltage window, the SFH 6.1 handles complex roof layouts with ease. Whether arrays are split across east-west orientations or varying tilt angles, it extracts peak power density even under variable irradiance or partial shading.

Telemetry, Connectivity, and Local Control (WiFi / LAN)

The inverter comes equipped with an integrated communication interface supporting both wireless WiFi and hardwired LAN (Ethernet) connectivity.

• Continuous telemetry data streaming to the monitoring cloud.

• Instant diagnostics, event logging, and real-time generation, consumption, and battery state visualization.

• Reliable data transmission via dedicated RJ45 Ethernet in environments with RF attenuation.

Key Technical Specifications:

• Rated AC Power: 6,000 W (6 kW)

• Grid Connection Type: Three-phase (3L+N+PE, 400 V)

• Battery Compatibility: High-Voltage (HV) Li-Ion

• MPPT Trackers: 2 (1 string per MPPT)

• Emergency Mode: Full Backup (three-phase output)

• Communication Interfaces: WiFi / LAN / RS485 / CAN

• Net Weight: 26 kg

• Ingress Protection: IP65 (indoor/outdoor rated)

• Cooling: Natural convection / intelligent forced cooling (low acoustic footprint)