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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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An SAJ On-grid Inverter (like the R5, R6, C6 series) primarily converts solar DC power to AC power for immediate use by your loads or for export to the utility grid. It operates only when the grid is active.

An SAJ Hybrid Inverter (like the H1, H2, H2 LV series) offers more advanced functionality. It can also convert solar DC to AC, but crucially, it integrates with battery storage. This allows it to store surplus solar energy for later use (e.g., at night or during peak tariffs), provide backup power during grid outages, and intelligently manage energy flow between solar panels, batteries, your loads, and the grid.

Battery compatibility varies by series:

The SAJ H1 Series and standard H2 Series (Single & Three Phase) are typically designed for modern Lithium-ion batteries, often high-voltage (HV) LFP (Lithium Iron Phosphate) chemistry, which offer excellent performance and cycle life.

The SAJ H2 LV (Low Voltage) Series is specifically engineered for greater flexibility with 48V Low Voltage battery systems, making it compatible with both LFP (Lithium Iron Phosphate) and traditional Lead-Acid batteries. This allows for more cost-effective battery solutions in certain scenarios.

Always refer to the specific model's datasheet and SAJ's approved battery list for detailed compatibility before pairing. Sunriver Electric can provide guidance on this.

SAJ Hybrid Inverters feature several intelligent operating modes, easily configurable via the eSolar platform:

Self-Consumption Mode: Prioritizes using your generated solar power to supply your loads directly. Any excess solar energy is then used to charge your batteries. Only when your loads are met and batteries are full will surplus power be exported to the grid (if permitted).

Time-of-Use (TOU) Mode: This mode allows you to take advantage of varying electricity tariffs. You can program the system to charge the batteries from the grid during off-peak (cheaper) hours and discharge the batteries to power your loads during peak (more expensive) hours, thereby reducing your energy bills.

Backup Power Mode: In the event of a grid outage, the hybrid inverter will automatically and rapidly (typically <10ms, providing UPS-level performance) switch to using the stored battery energy to power your designated essential loads, ensuring energy security.

The capability for parallel operation and generator integration varies across the SAJ Hybrid Inverter series, offering flexibility for different project needs:

The SAJ H2 LV (Low Voltage) Series is specifically designed for enhanced scalability and resilience. Certain H2 LV models support parallel connection of up to 4 units, allowing for significantly increased AC output power, which is beneficial for larger off-grid systems or more extensive backup needs. This series also features dedicated generator input support, enabling seamless integration with a backup generator for extended power during prolonged outages.

For the standard SAJ H1 and H2 Series (Single and Three Phase), direct parallel operation for power capacity increase or dedicated generator input might not be standard features for all models. Their primary design focuses on intelligent grid-tied operation with battery storage for self-consumption and UPS-level backup for specific loads.

It's always best to consult the specific datasheet for the SAJ hybrid model you are considering, or contact Sunriver Electric. We can help you identify the right SAJ hybrid inverter, including H2 LV models if parallel or generator functions are critical for your project.

SAJ Hybrid Inverters are monitored and managed through the SAJ eSolar platform. This typically includes:

eSolar Portal (Web): A comprehensive web-based platform for detailed system analysis, historical data, remote configuration, and firmware updates.

eSolar App (Mobile): A user-friendly mobile application (iOS and Android) for real-time monitoring of energy flow (solar production, battery status, grid interaction, load consumption), system status, and basic setting adjustments.

Users can easily track their energy production, consumption patterns, battery charge/discharge cycles, and overall system health.

When you partner with Sunriver Electric for your SAJ Hybrid Inverters, you benefit from:

Guaranteed Genuine Products: We supply only 100% authentic SAJ inverters with full manufacturer warranties.

Clear Technical Information: Access to accurate datasheets, compatibility lists, and upfront product details.

Simplified Procurement: We handle the complexities of international sourcing and logistics.

Responsive Support: Our knowledgeable team provides prompt assistance throughout your inquiry and ordering process, typically responding within 1 business day.

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SAJ All-in-One ESS (like the HS2, HS3, and CHS2 series) offers several key advantages over traditional separate component systems:

Simplified Installation: All core components (inverter, battery, BMS, sometimes EV charger) are pre-integrated in one unit, significantly reducing installation time, complexity, and potential wiring errors. For example, the HS3 series boasts a "plug-in play" design.

Optimized Performance & Compatibility: Components are factory-matched and engineered to work seamlessly together, often resulting in higher overall system efficiency and reliability.

Space Efficiency & Aesthetics: All-in-One units are typically more compact and have a sleeker, more modern design suitable for various installation locations. The HS3 is notably slim at 170mm.

Potentially Streamlined Support: Dealing with a single integrated system from one manufacturer can simplify troubleshooting and warranty processes.

Yes, many SAJ All-in-One ESS models are designed with modularity for battery expansion:

The HS2 Series typically allows for battery capacity expansion by adding more BOLI-5.0-HV/10 battery modules, reaching up to 20kWh for single-phase or 25kWh for three-phase systems.

The HS3 Series also features an expandable battery design, often with its own battery modules incorporating DC/DC optimizers for better performance.

The CHS2 Series, designed for larger C&I applications, is inherently built for substantial and scalable battery capacity (e.g., 50kWh to 200kWh+ or more) using high-density C&I cells.

Always check the specific model's datasheet for exact expansion capabilities and compatible battery modules.

The SAJ HS3 All-in-One ESS features a seamlessly integrated EV charger (typically 7kW for single-phase models and 11kW for three-phase models). The system's Energy Management System (EMS) intelligently coordinates power:

It prioritizes using available solar energy to charge your EV.

If solar isn't sufficient, it can use stored battery energy.

Finally, it can draw power from the grid if needed, or based on your charging schedule (e.g., charge during off-peak hours).

This integration allows for convenient, cost-effective, and often green EV charging directly from your home energy system, managed through the eSolar platform.

SAJ places a strong emphasis on safety in their All-in-One ESS designs:

Advanced Battery Management System (BMS): All series include a sophisticated BMS to protect against overcharge, over-discharge, over-temperature, over-current, and short circuits.

LFP Battery Chemistry: The use of LiFePO4 (LFP) batteries is inherently safer than some other lithium-ion chemistries.

Integrated Protections: Features like AC/DC Type II Surge Protection Devices (SPDs) are common.

HS3 Series Specifics: Includes battery self-heating for cold climates and internal fire protection systems.

CHS2 Series Specifics: Offers ultimate safety with standard AFCI (Arc Fault Circuit Interrupter), core battery cell health warnings, CO/fire detection within the cabinet, and cabinet-level fire suppression systems.

While the primary design of many hybrid All-in-One systems is for grid-tied applications with backup, certain SAJ models, particularly the CHS2 Series and some H2 LV (Low Voltage) standalone hybrid inverters (which can be part of a custom ESS), offer stronger capabilities for off-grid or unreliable grid scenarios.

The CHS2 series, for instance, supports DC generator input and is built for robust, high-capacity storage, making it suitable for creating resilient off-grid power systems or microgrids. The HS2 and HS3 can provide backup power during outages but are primarily grid-interactive. Always confirm the specific model's off-grid capabilities.

VPP stands for Virtual Power Plant. VPP readiness means the SAJ CHS2 All-in-One ESS has the necessary communication interfaces, control capabilities, and certifications (or is designed to easily obtain them) to participate in grid services programs offered by utility companies or energy aggregators.

By being part of a VPP, the CHS2 system can, for example, provide frequency regulation, demand response, or other ancillary services to the grid, potentially generating additional revenue for the system owner by leveraging its stored energy and smart dispatch capabilities. This is an advanced feature typically relevant for commercial and industrial installations.

Sunriver Electric simplifies your access to the complete range of SAJ All-in-One ESS (HS2, HS3, CHS2):

We ensure you receive 100% genuine, factory-new systems with full SAJ warranties.

Our team provides clear technical data on all integrated components (inverter, battery, BMS) and can offer guidance on selecting the right system capacity and series for your project's energy profile.

We manage the complexities of international sourcing and logistics, ensuring reliable delivery to your global project site (Ex-US).

You benefit from responsive customer service for inquiries and order processing.

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Choosing the correct SAJ Data Collector depends on your site's internet connectivity and the number of devices you need to monitor:

eSolar WiFi-D: Ideal for single inverters with stable Wi-Fi coverage near the inverter. It's a simple plug-and-play dongle.

eSolar AIO3: A versatile indoor hub offering Wi-Fi, Ethernet, and Bluetooth connectivity, often suitable for monitoring multiple devices or when a more robust local connection point is needed.

eSolar 4G / GPRS: Best for locations without reliable Wi-Fi or wired internet, using cellular networks for data transmission.

eSolar SEC (Smart Energy Controller): Designed for commercial and industrial sites to monitor multiple inverters (e.g., up to 10 or more) typically via RS485 communication.

Sunriver Electric can help you select the optimal Data Collector based on your specific SAJ system setup and site conditions.

While both connect your SAJ system to the eSolar platform, their roles differ:

An eSolar Data Collector primarily focuses on gathering data from your SAJ inverter(s) and/or ESS and transmitting it to the cloud for remote monitoring and basic alerts.

An SAJ eManager is a more advanced Energy Management System module. It not only provides monitoring capabilities but also acts as a "smart brain" for your SAJ deX energy system. It can execute more complex energy dispatch strategies (AI-driven), enable intelligent linkage with other devices like heat pumps, and facilitate advanced functions such as parallel inverter operation. It's key for sophisticated, integrated smart energy management.

Yes, the SAJ Smart Wi-Fi Plug (e.g., EU02C) is designed to monitor the power consumption of the specific appliance plugged into it. Through the eSolar app, you can see real-time and historical energy usage for that device, set schedules, and remotely turn it on or off. It's a great tool for understanding and managing the energy use of individual high-consumption household items, up to its maximum load current (typically 16A).

While your SAJ inverter provides excellent data on solar production, an SAJ Smart Meter (like the DDSU666 for single-phase or DTSU666 for three-phase) measures energy at a different point, typically where your system connects to the utility grid or at your main consumption panel. Its key roles include:

Accurate Net Metering: Precisely measures energy imported from and exported to the grid.

Enabling Zero-Export: Crucial for systems in regions where exporting power to the grid is restricted or not desired. The Smart Meter provides the data needed for the inverter/eManager to limit or prevent export.

Whole-Home/Business Consumption Monitoring: Gives a complete picture of your total energy usage, not just solar production, for better energy management insights.

Compatibility can vary. Newer SAJ smart accessories are generally designed for optimal performance with current and recent SAJ inverter and ESS series. For older SAJ inverter models, it's essential to check the specific accessory's datasheet for compatibility information or consult with Sunriver Electric. We can help verify if a particular Data Collector, eManager, or other smart device will work seamlessly with your existing SAJ equipment.

Sunriver Electric provides comprehensive support for SAJ smart accessories:

Expert Advice: Our team understands how these accessories integrate with different SAJ systems. We can help you identify the most suitable devices based on your monitoring, control, and energy management goals.

Guaranteed Authenticity: We supply only 100% genuine SAJ accessories, ensuring they function correctly and are covered by SAJ's warranty.</p

Complete Portfolio Access: You can source all necessary accessories alongside your main SAJ inverters or ESS for a complete system solution.

Streamlined Procurement: We manage the international sourcing and logistics, making it easy for you to get all components delivered reliably.

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