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