Sungrow SG4.0RS Single-Phase Solar Inverter | 4 kW
Modelo: SG4.0RS- Sku: SUNGINV005
- Vendor: Sungrow
Specifications
Product Description
The Sungrow SG4.0RS Single-Phase Solar Inverter | 4 kW is a high-performance residential string inverter, designed to maximize production and offer top-level safety. Its architecture with two independent MPPTs and a wide operating range allows operation with two different orientations or slopes, reducing losses from partial shading and improving capture during early and late hours. The set of protections (Type II SPD on DC and AC, leakage detection, and AFCI available) and its IP65 protection rating with C5 anti-corrosion treatment ensure a long service life outdoors. Monitoring via iSolarCloud, accessible by Ethernet/WiFi/RS485, provides total control, remote diagnostics, and advanced I-V curve analysis.
Main Features
- Nominal output power: 4,000 W (4,000 VA) at 230 V single-phase.
- 2 MPPTs with MPP window 40–560 V; start-up voltage 50 V (minimum 40 V).
- PV input: max. voltage 600 V; max. total current 32 A (16 A per MPPT); total Isc 40 A (20 A per MPPT).
- Maximum efficiency 97.9% and European efficiency 97.0%.
- Standard protections: Type II SPD on DC/AC, earth leakage, reverse polarity; AFCI for arc detection and mitigation.
- Full connectivity: Ethernet / WLAN / RS485 / DI and management via iSolarCloud.
Advantages or Benefits
- Outstanding safety with SPD on both sides of the inverter and arc mitigation to protect people and the installation.
- Higher production thanks to dual MPPT and low start-up voltage, ideal for roofs with two slopes or occasional shading.
- Outdoor reliability: IP65 enclosure with C5 treatment, natural cooling, and optimized electronics that reduce maintenance.
- Intelligent management via iSolarCloud with alarms, detailed history, and I-V analysis to resolve incidents without travel.
- Quick installation with plug-and-play connections, commissioning assistant, and compatibility with zero feed-in meter.
Purpose or Applications
The SG4.0RS is aimed at homes seeking stable, quiet, and easy-to-manage 4 kW self-consumption. It is perfect for gable roofs, solar pergolas, garages, and small residential rooftops that require reliable communications, active/reactive power control, and regulatory compliance.
Technical Specifications
| Nominal AC output power | 4,000 W / 4,000 VA |
| Max. AC current | ≈ 17.4 A at 230 V |
| Nominal AC voltage | 220/230/240 V (range 154–276 V) |
| Frequency | 50/60 Hz (windows 45–55/55–65 Hz) |
| THD | < 3% at nominal power |
| Power factor | > 0.99 (adjustable 0.8 ind.–0.8 cap.) |
| MPPT / Strings | 2 / 1 per MPPT |
| MPP range | 40–560 V |
| Max. PV voltage | 600 V |
| Start-up / minimum voltage | 50 V / 40 V |
| Max. PV current / Max. Isc | 32 A (16+16 A) / 40 A (20+20 A) |
| Max. / European efficiency | 97.9% / 97.0% |
| Protections | DC/AC SPD Type II, AFCI, earth leakage, reverse polarity, DC switch, overtemperature protection |
| Protection rating | IP65, C5 anti-corrosion |
| Cooling | Natural (no fans) |
| Operating temperature | -25 to 60 °C |
| Max. altitude | 4,000 m |
| Dimensions / Weight | 410 × 270 × 150 mm / 10 kg |
| Communications | Ethernet / WLAN / RS485 / DI |
| Functions | iSolarCloud, PID Zero, power and cos φ control |
Compatibilities
Compatible with the iSolarCloud platform and with Sungrow single-phase meter for zero feed-in. Integrable via Modbus with home energy management systems. Works with standard and bifacial PV modules within the limits of 600 V and 16 A per input.
The Sungrow SG4.0RS Single-Phase Solar Inverter | 4 kW offers safety, efficiency, and professional connectivity in a compact format for reliable and long-lasting residential self-consumption.
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Sungrow SG4.0RS Single-Phase Solar Inverter | 4 kW
