SOFAR HYD-5-20K-LT1 Three-Phase Hybrid Inverter (5kW - 20kW)

The SOFAR HYD-5-20K-LT1 is a three-phase hybrid inverter that works with 48 V low-voltage batteries (lithium-ion or lead-acid). It is ideal for homes, offices and small businesses on a three-phase supply. It comes in 5, 6, 6.5, 8, 9.9, 10, 12, 15 and 20 kW. It combines solar, battery, grid and generator in one unit, switches to backup in 4 ms, and supports up to 6 units in parallel.

Key features

Seamless backup: 4 ms automatic switchover, with 200% overload for 10 seconds
Runs heavy loads: backup (EPS) mode supports inductive loads such as air conditioners and refrigerators
Strong battery power: up to 350 A charge and discharge current, with lithium-ion or lead-acid 48 V batteries (works with SOFAR GTX5000S, SF-5KWH-L1 and SF-16KWH-L1)
More solar: 2 MPPTs, wide 160–950 V MPPT range, 2:1 DC:AC ratio (up to 40 kWp of panels)
Generator ready: generator port with automatic start/stop, plus smart-load control
Expandable: up to 6 inverters in parallel to build a microgrid
Work modes: self-use, feed-in priority, peak shaving, time-of-use and passive (EMS)
Smart monitoring: LCD and SOFAR Cloud app via the included Wi-Fi datalogger; RS485, Bluetooth, optional 4G / LAN
Tough: IP66, −30 °C to +60 °C, wall mounted, 5-year standard warranty (extendable)

Models

Model	Rated power	Max. apparent power	Recommended max. PV	Max. discharge current
HYD-5K-LT1	5 kW	5.5 kVA	10 kWp	120 A
HYD-6K-LT1	6 kW	6.6 kVA	12 kWp	135 A
HYD-6.5K-LT1	6.5 kW	7.15 kVA	13 kWp	145 A
HYD-8K-LT1	8 kW	8.8 kVA	16 kWp	190 A
HYD-9.9K-LT1-A	9.9 kW	9.9 kVA	20 kWp	205 A
HYD-10K-LT1	10 kW	11 kVA	20 kWp	210 A
HYD-12K-LT1	12 kW	13.2 kVA	24 kWp	240 A
HYD-15K-LT1	15 kW	16.5 kVA	30 kWp	300 A
HYD-20K-LT1	20 kW	22 kVA	40 kWp	350 A

Technical specifications (all models)

Battery
Battery type	Lithium-ion and lead-acid
Battery voltage range	40 – 60 V DC
Max. charging power	12 kW (5–10 kW models), 20 kW (12–20 kW models)
Max. charging current	240 A (5–12 kW), 350 A (15–20 kW)
BMS communication	RS485 / CAN
PV input
Max. input voltage	1000 V DC
Start-up / rated input voltage	200 V DC / 600 V DC
MPPT voltage range	160 – 950 V DC
Number of MPPTs / strings per MPPT	2 / 2
Max. input current / max. Isc	40/40 A / 50/50 A
AC grid, backup and generator
Rated voltage / frequency	3N~+PE, 380/400/415 V AC, 50/60 Hz
Peak output apparent power	2 × rated power, 10 s
Switch time	4 ms
Power factor range	0.8 lagging – 0.8 leading
THDi / THDv	< 3% / < 3%
Efficiency
Max. MPPT efficiency	99.9%
Max. / European efficiency	97.6% / 97.0%
Max. charge / discharge efficiency	95.0%
Protection
Protections	DC switch, PV reverse connection, output short circuit, overcurrent and overvoltage, insulation impedance detection, residual current detection, anti-islanding
Surge protection	PV: Type II, AC: Type II
General
Dimensions (W × H × D)	485 × 690 × 290 mm
Weight	52 kg
Protection rating	IP66
Operating temperature	−30 °C to +60 °C (derating above +45 °C)
Max. operating altitude	4,000 m (derating above 2,000 m)
Topology / cooling	Non-isolated / intelligent airflow
Standby self-consumption	< 15 W
Display / communication	LCD and app / RS485, optional Wi-Fi, 4G, LAN
Installation	Wall mounted

In the box

Inverter, wall bracket, expansion bolts and screws, Wi-Fi datalogger, PV connectors, parallel communication cable, 3 PCC CTs, quick installation guide.