SPS Series 3–6kW On-Grid PV Inverter
The SPS Series delivers 3–6kW of high-efficiency, single-phase on-grid power conversion, ideal for residential solar energy systems. Engineered with dual MPPTs, natural cooling, IP65 protection, and smart remote monitoring capabilities.
EPEVER’s SPS Series 3–6kW single-phase on-grid inverters deliver reliable and high-efficiency power conversion for residential solar systems. With advanced dual MPPT technology, support for 150% PV oversizing, and natural cooling design, the SPS Series ensures optimal energy production under various conditions. The inverters feature a compact structure, quiet operation, and are ideal for rooftop installations.
Engineered with IP65 protection and robust internal safeguards, these single-phase string inverters offer long-lasting outdoor performance. They accommodate a maximum PV input voltage of 600V and operate efficiently across a wide MPPT voltage range of 70V to 550V. Smart monitoring is available via USB, with optional WiFi and GPRS modules for real-time system tracking through the Solar Guardian App.
The SPS Series is designed for seamless integration into different residential grid environments, supporting a rated output voltage of 230V and flexible power outputs from 3kW to 6kW. With a maximum efficiency of 97.9%, strong protection features, and intelligent communication options, it provides a reliable foundation for modern residential solar energy projects.
| Model | SPS3KTL | SPS3.6KTL | SPS4KTL | SPS4.6KTL | SPS5KTL | SPS6KTL |
| PV Input (DC) | ||||||
| Max. input power | 4500W | 5400W | 6000W | 7500W | 7500W | 9000W |
| Max. open-circuit voltage | 600V | |||||
| Start-up voltage | 90V | |||||
| Rated input voltage | 360V | |||||
| Max. input current per MPPT | 16A | |||||
| Max. short-circuit current per MPPT | 20A | |||||
| MPPT voltage range | 70-550V | |||||
| Number of MPPTs | 1 | 2 | ||||
| Number of strings per MPPT | 1 | |||||
| AC Output (AC) | ||||||
| Rated output power | 3000W | 3600W | 4000W | 4600W | 5000W | 6000W |
| Max. output power | 3300W | 3960W | 4400W | 5060W | 5500W | 6000W |
| Rated output current | 13.1A | 15.7A | 17.4A | 20.0A | 21.7A | 26.1A |
| Max. output current | 14.4A | 17.3A | 19.1A | 22.0A | 24.0A | 28.6A |
| Rated voltage | 230V | |||||
| Voltage range | 161~276V | |||||
| Rated grid frequency | 50/60Hz | |||||
| THDi | ＜3% | |||||
| Power factor | ≈1 (Adjustable from 0.8 leading to 0.8 lagging) | |||||
| Efficiency | ||||||
| Max. Efficiency | 97.9% | |||||
| European Efficiency | 97.0% | 97.1% | ||||
| Protection | ||||||
| Basic protection | PV reverse polarity AC output overvoltage Anti-islanding PV insulation resistance AC output overcurrent Grid monitoring PV string current monitoring AC output short circuit Residual current (RCD) detection |
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| AFCI | Optional | |||||
| DC switch | Integrated | |||||
| SPD | DC Type ll / AC Type ll | |||||
| Environmental Parameters | ||||||
| Operating temperature | -25℃ to 60℃ | |||||
| Relative humidity | 0~100% | |||||
| Altitude | 3,000m (> 2,000m Derating) | |||||
| Ingress protection | IP65 | |||||
| Mechanical Parameters | ||||||
| Dimensions (L×W×H) (mm) | 369×389×140 | |||||
| Weight (kg) | 11.5 | 12 | ||||
| Others | ||||||
| Self-consumption (Night) | ＜1W | |||||
| Topology | Transformer-less | |||||
| Cooling method | Natural | |||||
| Display | LED/LCD (Optional) | |||||
| PV input connector | MC4 (4mm2–6mm2) | |||||
| AC output connector | Plug-and-play connectors (Up to 6mm²) | |||||
| Certificate | IEC/EN 62109; IEC/EN 61000; EN 50549; IEC 61727; IEC 62116; EN 62920 |
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Manual
SPS3-6KTL-Manual-EN-V1.0
Datasheet
SPS3-6KTL-DataSheet-EN
Product Highlights
High Efficiency: High yield 110% rating power; 150% PV oversizing; 2 MPPTs; Max. PV input voltage: 600VDC; Input current per string: 16A
Reliable & Safe: Natural cooling; Maintenance-free; Ultra-quiet IP65 protection for outdoor use; Built-in Type II SPD; Optional AFCI function
User-Friendly & Intelligent Monitoring: Optional LCD display; Standard USB communication port, WiFi / GPRS (optional)
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