⚡ Compact Residential Inverter

Sungrow

Sungrow SG3.0RS-L

Name: Sungrow SG3.0RS-L
Brand: Sungrow
Availability: InStock

3 kW Single-Phase Single-MPPT String Inverter

Compact 3 kW single-MPPT inverter for small residential rooftops and townhouses. Natural cooling, WLAN monitoring, AFCI 2.0 protection and IP65 outdoor-rated enclosure — all in a 6 kg form factor.

3 kW

Rated AC Power

97.8%

Max Efficiency

MPPTs

Request a Quote → Download Datasheet

Key Features

Why Engineers Choose the SG3.0RS-L

Four datasheet-backed advantages for residential solar projects.

📈

97.8% Peak Efficiency

Class-leading conversion efficiency with 97.3% European weighted efficiency. Multiple independent MPPTs minimize string-mismatch losses and maximize annual yield.

⚡

1-MPPT Architecture

1 string maximize design flexibility across complex roof orientations and partial-shading conditions. MPP voltage range 40–560 V accommodates bifacial and high-power modules.

🛡

Integrated AFCI 2.0

Built-in arc fault circuit interrupter detects DC arc faults in milliseconds, dramatically reducing PV fire risk. IP65 enclosure rating for indoor and outdoor installation.

🌊

IP65 Outdoor-Rated Enclosure

Operating temperature −25 °C to +60 °C with derating above 45 °C. Natural convection keeps acoustic emissions low. Suitable for coastal and industrial environments.

Specifications

Complete Technical Datasheet

All parameters sourced from Sungrow's official SG3.0RS-L datasheet. Country-specific grid-code configurations available on request.

Rated AC Output Power	3 kW
Max. Efficiency / European	97.8% / 97.3%
Number of MPPTs	1
Strings Configuration	1 string
Max. PV Input Power	4.5 kWp
Max. DC Voltage	600 V
MPP Voltage Range	40–560 V
Max. Input Current	16 A per string
AC Output Voltage	220/240 V
Total Harmonic Distortion (THD)	≤3%
Protection Rating	IP65
Operating Temperature	−25 °C to +60 °C
Max. Operating Altitude	4000 m
Cooling Method	Natural convection
AFCI / Safety	AFCI 2.0
Weight	6 kg
Dimensions (W × H × D)	360 × 263 × 125 mm
Communication Interface	RS485 + optional WLAN / Ethernet
Monitoring Platform	iSolarCloud
Grid Code Compliance	EN 50549, AS/NZS 4777.2, VDE-AR-N 4105, G99, CEI 0-21, IEC 61727
Standard Warranty	5 yr (extendable 25 yr)

Applications

Where the SG3.0RS-L Fits Best

Optimized for residential solar deployments.

🏠

Residential Rooftops

Detached homes, townhouses and apartment buildings with daytime self-consumption profiles.

🏡

Villas & Premium Homes

Large residential properties with multiple roof orientations and pool / EV charging loads.

🏢

Small Commercial

Retail outlets, cafés and SOHO offices up to 10 kW connection.

🌿

Off-Grid Cabins

Remote homes, agricultural buildings and cabins paired with battery storage.

Frequently Asked Questions

What Engineers Ask About the SG3.0RS-L

Datasheet-driven answers for procurement teams and PV designers.

What is the maximum efficiency of the Sungrow SG3.0RS-L?

The Sungrow SG3.0RS-L has a maximum efficiency of 97.8% and a European weighted efficiency of 97.3%, placing it among the highest-efficiency inverters in its power class.

What is the warranty on the Sungrow SG3.0RS-L?

The SG3.0RS-L comes with a standard 5-year manufacturer warranty, extendable to 10, 15, 20 or 25 years through Sungrow's official warranty extension program. Econo Solar handles warranty registration on your behalf and facilitates RMA service globally.

What certifications does the SG3.0RS-L have?

The SG3.0RS-L is certified to IEC 62109-1/-2, IEC 62116 and IEC 61727. It supports major global grid codes including EN 50549, AS/NZS 4777.2, VDE-AR-N 4105, G99 and CEI 0-21. Country-specific configurations available on request.

What is the maximum PV input power for the SG3.0RS-L?

The SG3.0RS-L supports up to 4.5 kWp of PV input with a maximum DC voltage of 600 V. The MPP voltage range is 40–560 V, with 16 A per string maximum DC current — sufficient for current-generation bifacial and TOPCon modules.

How fast can Econo Solar deliver the SG3.0RS-L?

Stock SKUs ship from Shanghai within 5–10 business days FOB Incoterms 2020. Non-stock or country-specific configurations require 4–8 weeks production lead time. Submit your RFQ and we will confirm stock status within 24 hours.