APsystems QT2-208 Microinverter

The APsystems QT2-208 Microinverter is a next-generation 3-phase quad microinverter engineered for high-performance commercial and industrial solar systems. Designed for native 208V three-phase grid connection, the QT2-208 offers an exceptional blend of power, safety, and efficiency—delivering up to 1,728 VA of continuous output power while connecting up to four high-output PV modules per unit.

• 3-phase quad microinverter designed for 208V grid systems
• Connects up to four modules with dual MPPT channels for optimal energy tracking
• Maximum continuous output power: 1,728 VA @ 208V
• High conversion efficiency: 96.5% peak, 96% CEC
• 20A maximum input current per channel for modern high-capacity PV modules
• Reactive Power Control (RPC) for grid stability and optimized power management
• Encrypted ZigBee communication with APsystems ECU for monitoring and control
• Meets UL 1741SB and NEC 2023 standards with built-in arc-fault and rapid shutdown protection
• Type 6 enclosure for robust weatherproof performance in harsh outdoor environments

Advanced 3-phase performance for commercial PV

The QT2-208 microinverter brings a new level of efficiency and reliability to commercial and industrial installations. Its native 3-phase output ensures perfectly balanced phase currents, reducing system losses and improving grid interaction. With four DC inputs and two independent MPPTs, it maximizes energy harvest even in partially shaded conditions.

Smart, safe, and compliant

Fully compliant with UL 1741SB, IEEE 1547, and the latest NEC 2023 requirements, the QT2-208 offers integrated DC arc-fault protection and rapid shutdown capability—without additional equipment. The encapsulated electronics and silicone-based sealing protect the system from heat and moisture, ensuring long-term durability and operational safety.

Connected intelligence and energy management

Equipped with encrypted ZigBee wireless communication, the QT2-208 seamlessly integrates with APsystems’ Energy Management Analysis (EMA) platform, providing 24/7 access to performance data, remote diagnostics, and system optimization. This connectivity allows installers and owners to monitor each inverter in real time, reducing maintenance costs and downtime.

Compact, durable, and installer-friendly

With a lightweight, fanless design and a rugged Type 6 rated enclosure, the QT2-208 simplifies installation while ensuring excellent thermal dissipation. Its plug-and-play architecture minimizes wiring complexity and speeds up deployment—making it an ideal choice for commercial rooftops, carports, and small ground-mount solar systems.

Size

14" x 1.8" x 9.5"

Weight

13 lb