| Model |  R-4KSL |
| PV input data |
| Max. PV input power (kW) | 6 |
| Max. PV input voltage (V) | 550 |
| Start-up voltage (V) | 100 |
| MPPT voltage range (V) | 100~430 |
| Rated PV input voltage (V) | 360 |
| No. of MPPT trackers | 2 |
| No. of strings per MPPT tracker | 1/1 |
| Max. input current per MPPT (A) | 16/16 |
| Max. short-circuit current per MPPT (A) | 24/24 |
 Battery input data |
| Battery type | Lithium-ion / Lead-acid |
| Max. charge / discharge power (kW) | 4 |
| Battery voltage range (V) | 40~58 |
| Rated battery voltage (V) | 48 |
| Max. charging / discharging current (A) | 80/80 |
| Rated charge / discharge current (A) | 80/80 |
| Battery charging strategy | Self-adaption to BMS |
| BMS communication | CAN |
| AC output data (grid side) |
| Rated output power (kW) | 4 |
| Max. apparent output power (kVA) | 4.4 |
| Max. apparent input power(kVA) | 4.4 |
| Rated grid voltage (V) | 230 |
| Grid voltage range (V) | 176~270 |
| Grid input voltage (V) | 230 |
| Rated grid frequency (Hz) | 50/60 |
| Grid frequency range(Hz) | 47~61 |
| Rated output current (A) | 17.4 |
| Max. AC output current (A) | 19.1 |
| Max. apparent input current (A) | 19.1 |
| Power factor | >1 (0.8 leading ~ 0.8 lagging) |
| Max. grid passthrough current(A) | 26.08 |
| THDi | <3% |
| Grid type | L+N+PE |
| AC output data (back-up) |
| Rated output power (kW) | 4 |
| Max. apparent output power (kVA) | 4.4 |
| Rated output voltage (V) | 230 |
| Rated output frequency (Hz) | 50/60 |
| Rated output current (A) | 17.4 |
| Max. AC output current (A) | 19.1 |
| Peak output power | ≥110%, 10mins; ≥120%, 1min; ≥130%, 1s; ≥150%, 100ms |
| Back-up switch time (ms) | <20 |
| THDu | <3% |
| Protection |
| Supported protection | PV reverse polarity protection, Anti-islanding protection, Ground
fault protection,
Leakage current protection, Insulation resistance detection, Backup
output short circuit protection,
AC under-voltage protection, AC output over-current protection, AC
over-voltage protection |
| Surge protection | DC Type III / AC Type III |
| Over voltage category | DC Type III / AC Type III |
| Certifications and standards |
| Certificates | ENIEC 61000-6-1:2019, EN IEC 61000-6-3:2021; EN 62109-1:2010; EN
62109-2:2011 |
| General data |
| Ingress protection | IP65 |
| Operating temperature range (℃) | -25~+60 |
| Cooling | Natural convection |
| Relative humidity | 0-95% (non-condensing) |
| Operating altitude (m) | 0~2,000(derating over 2,000) |
| Dimensions W*D*H (mm) | 476×215×477 (without generator port); 476×215×510 (with generator
port) |
| Weight (kg) | 20.5 (without generator port); 20.7 (with generator port) |
| Topology (solar / battery) | Transformerless / Transformerless |
| Noise emission (dB) | <35 |
| PV connection terminals | MC4 |
| Display and communication |
| Display | LCD |
| Communication | RS485/CAN |
