APsystems Micro-inverter DS3D 1800W 1-phase

APsystems DS3D 1800W is a single-phase micro-inverter with a maximum continuous output power of 1800 VA, designed to connect four PV modules (2x2 in series) with two independent MPPTs. The device offers high peak efficiency, encrypted Zigbee communication, and an integrated safety relay, making it suitable for multi-family and commercial installations.

Manufacturer: APsystems is an international supplier of micro-inverter technology, offering solutions for monitoring and managing PV energy production. The company provides devices with safety certification and offers a standard 10-year warranty with an option to extend to 20 years. APsystems devices work with the EMA monitoring portal, enabling remote diagnostics and maintenance.

Electrical Parameters

• Maximum Continuous Output Power: 1800 VA
• Nominal Output Voltage: 230 V (range 184 V – 253 V)
• Adjustable Output Voltage Range: 180 V – 270 V
• Maximum Continuous Output Current: 7.8 A
• Nominal Frequency/Range: 50 Hz (48 Hz – 51 Hz); adjustable 45 Hz – 55 Hz
• MPPT Voltage Range for Peak Power: 68 V – 90 V
• Operating Voltage Range (DC): 52 V – 118 V; maximum input voltage 118 V
• Maximum Input Current: 20 A × 2
• Peak Efficiency: 97% (CEC Efficiency 96.7%)
• Nominal MPPT Efficiency: 99.5%; Night Power Consumption: 20 mW
• Communication: encrypted Zigbee; Features: 2 independent MPPT channels, integrated safety relay
• Maximum Number of Units on One Branch: 2 at 20 A / 3 at 30 A (according to local grid operator requirements)

Mechanical Parameters

• Dimensions (W × H × D): 283 mm × 233 mm × 48.4 mm
• Weight: 3.8 kg
• Operating Temperature Range: -40 °C to +65 °C
• Storage Temperature Range: -40 °C to +85 °C
• Cooling: natural convection (no fans)
• Environmental Rating of Enclosure: IP67
• Connector Type: Stäubli MC4 PV-ADBP4-S2 & ADSP4-S2
• AB Bus Cable: 2.5 mm² / 4 mm²