Powering Your Projects with Reliable On-grid Inverters
Maximize Grid Feed-in with SAJ R5, R6 & C6 On-grid Inverters
We provide the advanced SAJ R5, R6, and C6 series on-grid inverters, specifically engineered for diverse applications ranging from residential rooftops to large-scale commercial installations.
Find the Right On-grid Inverters for Your Project
SAJ offers three distinct on-grid inverter series tailored for different scales and requirements. Quickly compare below to see which best suits your needs.
R5 Series - Residential Focus
- Target:
Premium Residential & Small Commercial (Single/Three Phase) - Power Range:
0.7kW – 12kW - Key Features:
Quiet (<29dB), High Reliability, User-Friendly eSolar App Monitoring, Efficiencies up to 98.6%.
R6 Series - Commercial Powerhouse
- Target:
Large Residential & SME Commercial (Three Phase) - Power Range:
15kW – 50kW - Key Features:
High Efficiency (up to 98.8%), 110% AC Overload, Optional AFCI, Built-in SPD, 16A String Current.
C6 Series - Industrial Scale Performance
- Target:
Large Commercial & Industrial (String Inverter) - Power Range:
75kW – 125kW+ - Key Features:
Max Efficiency (up to 99%), Max Flexibility (up to 12 MPPTs), Smart IV Scan, IP66 Protection.
Powering Projects of All Scales
See how SAJ on-grid inverters excel in residential, commercial, and industrial settings worldwide.
Unsure Which SAJ Inverter Fits Your Project?
Our specialists are ready to help you navigate the options and find the perfect SAJ on-grid solution for your specific requirements.
How SAJ On-grid Inverters Deliver Solar Power to You
1. Harnessing Your Solar Resource
Your Solar system captures sunlight, initiating the clean energy flow as Direct Current (DC) for your project.
2. SAJ's Smart Conversion Engine
SAJ Inverters expertly convert DC to grid-perfect AC power into high-quality Alternating Current (AC), precisely synchronized with the grid.
3. Direct Power for Your Use
Grid-perfect AC instantly powers your loads, reducing grid electricity use by up to 100% during solar production.
4. Seamless Grid Interaction
Surplus AC power? SAJ Inverters safely export it to the grid, ensuring 100% compliant, synchronized operation.
3 reasons why you choose SAJ On-grid Inverters
More Power, Faster Payback
Maximize your energy yield with industry-leading efficiency (up to 99%) and advanced MPPT, accelerating your project’s return on investment.
- Up to 99% Max Efficiency
- Advanced MPPT Algorithm
- High Power Yield
- Faster Project ROI
Install Flexibly, Manage Easily
Adapt to any site with broad compatibility and up to 12 MPPTs. Remotely monitor and control via the intuitive eSolar platform.
- Wide Power Range
- Max. 12 MPPTs
- User-Friendly eSolar
- Quick Commissioning
Built Tough for Lasting Safety
Operate reliably long-term with robust components, comprehensive protections (Type II SPD, optional AFCI), and IP65/66 rating for harsh conditions.
- Robust Componentry
- Type II SPD
- AFCI Protection
- IP65/66 Weatherproof
Core Specs of SAJ On-grid Inverters
R5 Series Single Phase - R5-5K-S2-15
DC Input & PV Array Compatibility
Max. PV Array Power
7500 Wp.
Allows flexible solar array oversizing for optimal yield.
MPPT Voltage Range
90-550 V.
Wide range adapts to various string designs easily.
Max. DC Input Current
15 A.
Suits modern high-current PV modules effectively.
AC Output & Grid Connection
Nominal AC Output Power
5000 W.
Delivers stable 5kW for typical residential needs.
Nominal AC Voltage/Range
220/230/240V / 180-280V.
Compatible with global single-phase grid standards.
Max. Efficiency
97.8%.
High conversion rate for greater energy harvest.
Physical & Operational Data
Protection Degree
IP65.
Durable design for reliable outdoor installation.
Weight
18 kg
Compact and lightweight for easy handling and setup.
Noise Emission
<29 dB.
Quiet operation, ideal for residential environments.
R6 Series Three Phase - R6-25K-T3-32
DC Input & PV Array Compatibility
Max. PV Array Power
37500 Wp.
Supports large commercial solar arrays effectively.
MPPT Voltage Range
180-1000 V.
Very wide range for optimal string configuration.
Max. Input Current (per MPPT)
32 A.
Accommodates high-power bifacial/large solar modules.
AC Output & Grid Connection
Nominal AC Output Power
25000 W.
Strong 25kW for substantial commercial loads.
AC Overload Capacity
110%.
Manages temporary peak power demands effectively.
Max. Efficiency
98.8%.
Excellent conversion ensures higher project energy yields.
Key Features & Protections
Protection Degree
IP65.
Reliable for outdoor commercial and industrial use.
Integrated SPD (DC & AC)
Type II.
Built-in surge protection enhances system safety.
AFCI (Arc Fault Circuit Interrupter)
Advanced safety feature for arc fault detection.
C6 Series String Inverter - C6-125K-T12
DC Input & PV Array Design
Max. DC Input Voltage
1100 V.
Allows for longer strings, reducing BOS costs.
Number of MPPTs
12.
Ultimate flexibility with 12 independent trackers.
Max. Input Current (per MPPT)
40 A.
Ideal for latest high-current, high-power modules.
AC Output & System Efficiency
Nominal AC Output Power
125000 W.
Substantial 125kW for large-scale energy feed-in.
AC Overload Capacity
110%.
Manages temporary peak power demands effectively.
Max. Efficiency
99.0%.
Industry-leading 99% for maximum energy conversion.
Advanced Features & Durability
Protection Degree
IP66.
Superior protection for harsh outdoor environments.
Integrated SPD (DC & AC)
Type II.
Built-in surge protection enhances system safety.
Smart I-V Curve Scan
Intelligent diagnosis for optimized O&M procedures.
On-grid Inverter Video Showcase
SAJ R5 Rooftop Solar Inverter for Smart Solar Energy
Introducing R5 Series Rooftop On-grid Solar Inverter
SAJ R6 Series Solar Inverter Installation Tutorials
InterSolar 2022: Come & Check SAJ latest solutions for your smart energy
SAJ C6 Series Commercial Solar Inverter Installation Tutorials
Why Source SAJ On-grid Inverters Through Sunriver Electric
Guaranteed Authenticity & Warranty
Receive 100% genuine SAJ products with full manufacturer warranties up to 5-10 years
Effortless International Sourcing
We simplify your global sourcing, often reducing typical import paperwork by over 30%.
Transparent Product Data
Access 100% accurate SAJ specs and real-time availability, updated directly from the source for informed decisions.
Full SAJ Product Range
Get the latest SAJ innovations and the complete R5, R6, C6 series (0.7kW to 125kW+) through us.
Dedicated Client Support
Our team guarantees inquiry responses within 1 business day, providing prompt and helpful support.
Tailored Solution Guidance
We help match your project (e.g., 10kW residential or 500kW C&I) to the ideal SAJ inverter series.
On-grid Projects via Sunriver Electric
Commercial Facility Delivers Max Yield, Germany
Munich, Germany
This commercial facility utilized SAJ C6-100K-T9 inverters (2 units) sourced through Sunriver Electric, paired with DAH Solar 550W bifacial modules. The system consistently exceeds energy production targets, achieving 98.7% average inverter efficiency and an estimated annual CO2 reduction of 180 tons.
Capacity:
250 kW
Customer:
Bavarian Logistics GmbH
Type:
On-grid Solar
Commercial Facility Delivers Max Yield, Germany
- Capacity:
250 kW - Customer:
Bavarian Logistics GmbH - Key Features:
This commercial facility utilized SAJ C6-100K-T9 inverters (2 units) sourced through Sunriver Electric, paired with DAH Solar 550W bifacial modules. The system consistently exceeds energy production targets, achieving 98.7% average inverter efficiency and an estimated annual CO2 reduction of 180 tons.
Industrial Plant Maximizes Output, Poland
Warsaw, Poland
This large industrial facility selected SAJ C6-125K-T12 inverters (4 units), facilitated by Sunriver Electric, to power its operations. Utilizing high-current DAH Solar bifacial modules, the system benefits from the C6’s 12 MPPTs for optimal energy harvest on a complex roof, achieving a consistent system performance ratio (PR) above 85%.
Capacity:
500 kW
Customer:
StalKonstrukcje Polska Sp. z o.o.
Type:
On-grid Solar
Industrial Plant Maximizes Output, Poland
- Capacity:
500 kW - Customer:
StalKonstrukcje Polska Sp. z o.o. - Key Features:
This large industrial facility selected SAJ C6-125K-T12 inverters (4 units), facilitated by Sunriver Electric, to power its operations. Utilizing high-current DAH Solar bifacial modules, the system benefits from the C6’s 12 MPPTs for optimal energy harvest on a complex roof, achieving a consistent system performance ratio (PR) above 85%.
Residential Community Solar, Spain
Seville, Spain
For this multi-home residential project, SAJ R6-20K-T2-32 inverters (4 units) supplied by Sunriver Electric were chosen for their reliability and flexible installation. The system now powers over 30 homes, significantly reducing their collective energy bills and showcasing robust performance with >98% uptime.
Capacity:
80 kW
Customer:
Solara Homes Collective
Type:
On-grid Solar
Residential Community Solar, Spain
- Capacity:
80 kW - Customer:
Solara Homes Collective - Key Features:
For this multi-home residential project, SAJ R6-20K-T2-32 inverters (4 units) supplied by Sunriver Electric were chosen for their reliability and flexible installation. The system now powers over 30 homes, significantly reducing their collective energy bills and showcasing robust performance with >98% uptime.
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Frequently Asked Questions about SAJ On-grid Inverters
The primary differences lie in their target application scale, power range, and specific features:
R5 Series (0.7kW - 12kW): Designed primarily for high-quality residential and small commercial installations (available in single and three-phase). It focuses on reliability, quiet operation (<29dB), user-friendliness via the eSolar App, and excellent efficiency (up to 98.6%) for its class.
R6 Series (15kW - 50kW): A three-phase solution tailored for larger residential systems and small-to-medium enterprise (SME) commercial rooftops. Key strengths include high efficiency (up to 98.8%), robust 110% AC overload capability, 16A string current support (ideal for modern modules), and optional advanced safety features like AFCI.
C6 Series (75kW - 125kW+): SAJ's powerhouse string inverter for large commercial and industrial-scale projects. It boasts top-tier maximum efficiency (up to 99.0%), ultimate design flexibility with up to 12 MPPTs, high DC input current capacity (40A/MPPT), and advanced features like Smart I-V Curve Scan for optimized performance and O&M.
When you source SAJ on-grid inverters through Sunriver Electric, you receive the full official manufacturer warranty provided by SAJ. The standard warranty period typically ranges from 5 to 10 years, depending on the specific inverter model and the region of installation. Extended warranty options may also be available for certain models.
We ensure all warranty documentation is properly handled, and we can assist in facilitating the warranty claim process should the need arise, leveraging our direct partnership with SAJ. Please refer to the specific product datasheet or contact us for exact warranty terms for the model you are interested in.
Maintaining product authenticity is paramount at Sunriver Electric. As an fficially authorized partner of SAJ, we have a direct supply agreement and source all our inventory exclusively from SAJ's official manufacturing channels.
Every SAJ inverter we supply comes with its unique, original serial number, which can be verified. We guarantee 100% genuine products, eliminating the risks associated with unauthorized or grey-market channels. Our transparent supply chain ensures you receive authentic, high-quality equipment meeting SAJ's stringent standards.
To help us provide the most accurate and relevant quote for your project, please include the following details in your inquiry:
Project Location (Country/Region): This helps determine applicable grid codes and shipping considerations.
Required Total AC Capacity (kW): The total output power needed for the inverter(s).
PV Array Size (kWp or number/type of panels): Information about the solar panels being used.
Preferred SAJ Series/Model (if known): Let us know if you have specific models in mind.
Project Type: Specify if it's residential, commercial, or industrial.
Voltage Requirements: Grid voltage and phase (e.g., 400V 3-phase).
Absolutely.All modern SAJ on-grid inverter series (R5, R6, C6) are designed for smart connectivity and support remote monitoringthrough SAJ's eSolar platform.
This platform typically offers both a user-friendly mobile app (iOS and Android) and a web portal. You can easily track real-time and historical energy production, monitor system status, view performance data, and potentially receive alerts or perform remote configuration adjustments (depending on the model and user permissions). Communication modules like Wi-Fi or Ethernet dongles are usually required and available.
Lead times for SAJ inverters ordered via Sunriver Electric can vary depending on several factors, including the specific inverter model, the order quantity, current SAJ production schedules, and global shipping conditions.
We strive to maintain efficient communication with SAJ to provide the most accurate lead time estimates possible. For standard models and smaller quantities, lead times might be shorter if local stock is available (though as a trading agent, we typically facilitate factory orders). For larger orders or specific configurations, factory production lead times will apply. Please contact us with your specific requirements (model, quantity, destination), and we will promptly provide you with an estimated delivery timeline based on current information.
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