SigenMicro 400

Item number: C00664

Warranty: 15 years

The SigenMicro 400 is a 1-in-1 microinverter designed for rooftop and balcony solar systems. Its DAB topology supports high efficiency, while WLAN Mesh communication enables reliable, scalable deployment even with multiple units. Built-in energy management (EMS) can reduce the need for additional devices, while plug-and-play AC connection and bracket mounting facilitate quick installation. The system supports module-level monitoring, quick shutdown, and multiple protection functions, making it well suited for use in a contractor (B2B) environment.

Main features

• 1-in-1 design: connection of 1 solar module (1 MPPT input)
• Nominal AC power: 400 W (single-phase)
• WLAN + WLAN Mesh communication
• Built-in EMS
• Module-level monitoring, fast shutdown, and overvoltage protection supported
• IP67 protection, natural convection cooling (no fan)

DC input (PV side)

• Frequently used module power: 320–540+ W
• Starting voltage: 20 V
• PV input voltage range (min./max.): 16–60 V
• MPPT voltage range: 16–60 V
• Number of connectable modules: 1
• Max. input current: 16 × 1 A
• Max. short-circuit current: 25 × 1 A

AC output (mains side)

• Network type: single-phase
• Nominal output voltage: 220 / 230 / 240 V
• Nominal output current (220/230/240 V): 1.82 / 1.74 / 1.67 A
• Nominal output voltage range: 184–275 V
• Nominal mains frequency: 50 / 60 Hz
• Network frequency range: 45–55 / 57–63 Hz
• Teljes áram harmonikus torzítás (THDi): < 3% (névleges teljesítményen)
• Power factor: 0.8 capacitive ~ 0.8 inductive

• Max. units/branch (2.5 mm² cable, 20 A): 8 / 9 / 9 (220 / 230 / 240 V)
• Max. units/branch (4.0 mm² cable, 30 A): 13 / 13 / 14 (220 / 230 / 240 V)

Impact

• Maximum efficiency: 97.5%
• European efficiency: 96.7%

Supervision and protection

• Network monitoring: supported
• Ground fault detection: supported
• PV module-level monitoring: supported
• Quick disconnect: supported
• Surge protection: supported

General information

• Dimensions (W/H/D): 232 / 186 / 35 mm (without bracket)
• Weight: 2.8 kg
• Storage temperature: –40 ~ 85 °C
• Operating temperature: –40 ~ 65 °C
• Relative humidity: 0% ~ 100%
• Max. installation height: 4000 m
• Cooling: natural convection
• Topology: high-frequency transformers, galvanically isolated
• Éjszakai fogyasztás: < 50 mW
• Protection: IP67
• Display: LED
• Communication: WLAN
• AC connection: plug-and-play connector
• Installation: console mounting