AP systems QT2 208V 1728W 3-Phase Microinverter – High-Power 4-Module Input, Rapid Shutdown, UL 1741

APsystems QT2 208V Three-Phase Microinverter – 1728W

What it does: Converts DC to AC at the panel level for commercial three-phase systems — one unit connects up to 4 solar modules, each with independent module-level optimization.

Key specs:

• Max AC output: 1,728W
• System voltage: 120/208V three-phase
• Module capacity: up to 4 panels per unit
• Installation: rooftop or ground-mount

Built for: Commercial rooftops, industrial buildings, agricultural facilities, schools, municipal/government projects, ground-mounted solar farms

Why it matters:

• 4 modules per unit = fewer inverters needed, lower installation labor and balance-of-system costs for large arrays
• Module-level conversion = each panel operates independently, minimizing shading/mismatch/dirt losses
• Three-phase 208V output = balanced power distribution matching commercial electrical infrastructure
• Weather-resistant enclosure = built for harsh outdoor rooftop or ground-mount conditions

Warranty: 25 years — among the longest in the commercial microinverter category