Three-phase All in One system for large residential & light commercial storage.
The Pylontech FH3X-12K-HY-3P is a 12 kW, 3-phase high-voltage hybrid inverter purpose-built for Force H3X battery stacks. It supports seamless on-grid/off-grid operation with ≤10 ms EPS switchover, 100% three-phase load unbalance, and native comms for smart energy management. (This listing is for the inverter head unit only—battery modules, cabinet and accessories are sold separately.) 

Why installers choose it

• Big PV headroom: up to 24 kW PV across 3 MPPT (1+1+1); MPPT 200–850 V (full-load 280–850 V), 1000 V max DC; 20 A per MPPT (Isc 30 A). Ideal for long, modern HV strings.

• HV battery performance: works with Force H3X stacks on a 120–850 V DC battery bus; 50 A charge / 50 A discharge on the 12 kW model.

• Fast backup: ≤10 ms on/off-grid switching keeps essential loads powered; 400 V 3W+N+PE output.

• Scalable: parallel up to 6 units for higher power and redundancy.

Reliability & compliance

IP55 system protection, air cooling, operating range −10 °C to +55 °C (low noise < 29 dB). Conforms to major EU grid/safety standards including EN 50549-1, VDE-AR-N 4105, CEI 0-21 (see datasheet).

Monitoring & comms

Built-in Wi-Fi/WLAN/Bluetooth plus RS485/CAN for inverter-to-BMS integration and remote monitoring via app/portal.

Efficiency

Up to ~97% max efficiency, European efficiency 97%; high-speed MPPT for better real-world harvest.

Key specs (quick view)

• AC output: 12 kW rated, 400 V, 50/60 Hz; ≤10 ms EPS switchover; 100% phase unbalance supported.

• PV side: 3 MPPT (1+1+1); 200–850 V MPPT (full-load 280–850 V); 1000 V max DC; 20 A/MPPT, Isc 30 A; max PV 24 kW.

• Battery side: 120–850 V DC window; 50 A charge / 50 A discharge.

• Parallel operation: up to 6 units.

• Inverter head unit (typical): ~550 × 516 × 191 mm, ~28 kg, IP65 enclosure (stacked system rated IP55).

What’s included

• FH3X-12K-HY-3P inverter head unit

• Basic mounting/quick-start materials (see current package contents)

Good accessory pairings (sold separately)

• Pylontech Force H3X stack with FH10050 battery modules (5.12 kWh each)

• Smart meter/CT for zero-export and tariff control

• PV DC isolators, Type II surge protection, and AC breakers sized to local code

Compatibility note: Designed for the Force H3X high-voltage ecosystem—not compatible with 48 V low-voltage batteries. Use with FH10050 modules and the matching Force H3X cabinet/BMS for best results.