Shenzhen Resun energy Technology Co., Ltd
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• MPPT algorithm, conversion rate over 98%, fast response
• Remote monitoring, module resistant to extreme conditions, easy to operate and maintain
• Multi scenario adaptation, peak valley arbitrage, promoting energy transformation
KEY STRENGTHS
• Support on/off-grid AC coupling function
• Support intelligent load management (customized)
• Support three-phase and multi-machine parallel connection
• Customizable Remote Upgrade Function for BMS (Based on CAN Protocol)
| 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 | |