SAJ 4kW 1-Phase Inverter, 2 MPPT, DC Switch Integrated, IP65 Requires AIO3 WIFI

Item Code: R5-4K-S2-15
Brand:

SAJ


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( 6 available )
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SAJ remains at the forefront of clean energy innovation, providing high-performance inverters and energy management systems that empower residential users to harness the full potential of solar power. Designed with sustainability, efficiency, and reliability in mind, SAJ’s advanced solutions support a smooth transition to renewable energy while delivering long-term cost savings and energy independence.

The SAJ R5-4K-S2-15 is a 4kW single-phase inverter tailored for residential solar systems. Featuring two MPPTs for optimised energy harvesting across multiple panel orientations, it ensures consistent performance under varying sunlight conditions. Its built-in DC switch enhances safety and simplifies maintenance, while the compact, IP65-rated housing makes it ideal for outdoor installations in any climate.

For complete system visibility, this inverter integrates with the SAJ-ESOLAR-AIO3 WiFi module, enabling real-time monitoring and diagnostics through mobile or web platforms.

Key Features:

  • 4kW Single-Phase Output: Suited for residential setups with standard electrical systems

  • Dual MPPT Tracking: Maximises energy yield by independently optimising two solar arrays

  • Integrated DC Switch: Enhances safety by allowing safe isolation for maintenance or emergencies

  • IP65 Rated Housing: Dust-tight and weather-resistant for outdoor installation

  • Compact Design: Space-efficient and easy to install in tight areas

  • High Conversion Efficiency: Extracts maximum usable power from solar panels

  • WiFi Monitoring (via AIO3 Module): Enables live performance tracking and troubleshooting from anywhere

  • Durable Construction: Built to perform reliably in harsh temperature and environmental conditions

  • User-Friendly Operation: Features an intuitive interface for simple setup and control

Product Specifications:

  • Model: R5-4K-S2-15

  • Operating Temperature Range: –40°C to +60°C

  • Rated AC Current: 17.4 A

The SAJ R5-4K-S2-15 inverter offers dependable, high-efficiency performance in a compact, user-focused design, making it a smart choice for homeowners seeking reliable solar energy generation and monitoring.

  • 4kW 1ph, 2MPPT, DC Switch Integrated IP65- Datasheet.pdf / File size: 5.18 MB
  • 4kW 1ph, 2MPPT, DC Switch Integrated IP65- G98 Verification Report.pdf / File size: 0.72 MB
  • 4kW 1ph, 2MPPT, DC Switch Integrated IP65- User manual.pdf / File size: 2.37 MB
  • SAJ  Warranty Policy (EU).pdf / File size: 0.22 MB
  • Warranty registration SAJ.pdf / File size: 0.76 MB
Brand SAJ
Type Inverter
Power rating 3.6kW-4.0kW
Phase 1 Phase

Disclaimer: We have taken measures to ensure that all information, including this product page and all the downloadable publications are correct. Nevertheless, Solen Energy UK Limited accept no liability for errors or information that is incorrect or considered misleading. Suggestions for or descriptions of the end use or application of products or working methods are for information purposes only and Solen Energy UK Limited and its subsidiaries accept no liability for them.