SOFAR HYD-3~8K-LS1-PRO Single-Phase Hybrid Inverter (3kW - 8kW)

The SOFAR HYD-3~8K-LS1-PRO is a single-phase hybrid inverter for homes and small businesses. It combines a solar inverter and a battery inverter in one compact unit, from 3 kW to 8 kW. It works with lithium-ion or lead-acid 48 V batteries and switches to backup in just 4 ms when the grid fails. It can also run with a diesel generator during outages, and several units can work in parallel as a microgrid.

Key features

Seamless backup: 4 ms automatic switchover between grid and backup
Handles surges: 200% overload for 10 seconds, so it can start pumps, fridges and air conditioners
Strong battery charging: up to 190 A charge and discharge current, with lithium-ion or lead-acid batteries and RS485/CAN BMS communication
Generator support: dedicated generator input for energy storage and home power during grid outages
Expandable: multiple inverters in parallel to build a microgrid
More solar: 2 MPPTs, up to 2× PV oversizing (6–16 kWp of panels)
Built tough: IP66, −30 °C to +60 °C, only 18 kg, wall mounted
Easy monitoring: LCD and app, RS485 and Bluetooth, optional Wi-Fi / 4G / LAN

Models

Model	Rated power	Max. apparent power	Recommended max. PV	Max. discharge current
HYD-3K-LS1	3 kW	3.3 kVA	6 kWp	75 A
HYD-3.6K-LS1	3.6 kW	3.6 kVA	7.2 kWp	90 A
HYD-4K-LS1	4 kW	4.4 kVA	7.2 kWp	100 A
HYD-4.6K-LS1	4.6 kW	4.6 kVA	9.2 kWp	115 A
HYD-5K-LS1	5 kW	5.5 kVA	10 kWp	125 A
HYD-6K-LS1	6 kW	6.6 kVA	12 kWp	150 A
HYD-7K-LS1	7 kW	7.7 kVA	14 kWp	175 A
HYD-7.6K-LS1	7.6 kW	8.4 kVA	15.2 kWp	190 A
HYD-8K-LS1	8 kW	8.8 kVA	16 kWp	190 A

Technical specifications (all models)

PV input
Max. input voltage	500 V DC
Start-up / rated input voltage	90 V DC / 360 V DC
MPP voltage range	60 – 435 V DC
Number of MPPTs	2 (1/1 strings; 2/1 on 7.6 and 8 kW)
Max. input current / max. Isc	20/20 A / 25/25 A (32/20 A / 40/25 A on 7.6 and 8 kW)
Battery
Battery type	Lead-acid or lithium-ion
Voltage range	40 – 60 V DC
Max. charging power	7 kW (8 kW on 7.6 and 8 kW)
Max. charging current	175 A (190 A on 7.6 and 8 kW)
BMS communication	RS485 / CAN
AC grid, backup and generator
Rated voltage / frequency	L+N+PE, 220/230/240 V AC, 50/60 Hz
Peak output apparent power	2 × rated power, 10 s
Switching time	4 ms
Max. grid passthrough current	35 A (3–5 kW), 40 A (6 kW), 50 A (7–8 kW)
Power factor range	0.8 lagging – 0.8 leading
THDv / THDi	< 3% / < 3%
Efficiency
Max. MPPT efficiency	99.9%
Max. / European efficiency	97.6% / 97%
Max. charge / discharge efficiency	95%
Protection
Protections	DC switch, PV and battery 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)	380 × 480 × 230 mm
Weight	18 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, Bluetooth, optional Wi-Fi, 4G, LAN
Installation	Wall mounted