APsystems QT2 – 3-phase micro-inverter for 4 modules

Maximum safety & efficiency

The APsystems QT2 is fully encapsulated and operates at low DC voltage, which significantly increases safety compared to traditional string systems. An integrated protection relay and IP67/NEMA 6 protection rating ensure maximum robustness and durability, even under demanding weather conditions.

• 4 inputs for modules up to 500–600 W
• 2 MPPTs for optimal yield maximisation
• Symmetrical 3-phase AC output
• Encrypted ZigBee communication
• Up to 20-year warranty (manufacturer’s specification)
• Low DC input voltage for maximum personal safety

Quick and easy to install

Thanks to its plug-and-play design, standardised accessories and identical cabling systems, the QT2 can be installed particularly quickly – without the need for a DC string design. The solution significantly reduces installation errors, stockholding costs and installation times (according to product documentation, pages 2–3) [oai_citation:0‡APsystems Commercial Flyer - DE.pdf](sediment://file_0000000031ac71f49734d9fc4a702804).

Intelligent real-time monitoring

Via the APsystems ECU-R / ECU-C (Energy Communication Units), the QT2 provides comprehensive panel monitoring. The EMA Monitoring Platform and app offer:

• Real-time monitoring at module level
• Remote maintenance, fault alerts & diagnostics
• Online layout & configuration functions
• Optional: consumption & grid data (with ECU-C)

Ideal for commercial applications, carports & challenging rooftops

The APsystems QT2 has been specifically designed to meet the requirements of high-performance PV modules. According to the datasheet, it is particularly suitable for solar carports, multi-family homes, complex roof orientations and commercial installations (page 2) [oai_citation:1‡APsystems Commercial Flyer - DE.pdf](sediment://file_0000000031ac71f49734d9fc4a702804).

Technical highlights (excerpt)

Further technical details available on request or in the official data sheet.