400W AC 220V On Grid Micro Inverter Single Phase – Silver

400W On Grid Micro Inverter (MPPT Micro Solar Inverter) IP65 Waterproof Design 230VAC RS232 Port Wide voltage 22-50VDC with WIFI

This GTB series micro inverter has a high-efficiency MPPT engine, intelligent WIFI module, multiple security protection, simple installation, and reliable performance, equipped with a new generation of smart home(smart life app)wife monitoring systems to use together, to achieve the internet of things intelligent online monitoring and control!

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1. High performance maximum power point tracking (MPPT)
2. Reverse power transmission
3. Input /output is fully isolated to protect the electrical safety
4. Multiple parallel stacking
5. Digital control system
6. Simplify maintenance (user serviceable)
7. Operation and maintenance costs low
8. Flexible installation


  • Provide clean and environmentally friendly energy for household electricity
  • Shopping malls, factories, etc., convert the solar energy collected by solar panels into alternating current for commercial electricity
  • Agriculture, e.g. powering irrigation systems and livestock houses
  • Power support for people who use electrical appliances
  • In the road lighting system of municipal engineering
  • Convert solar energy into electricity for lighting, so as to achieve the purpose of energy saving and emission reduction.



Model GTB-400-S
Maximum input power 275-400W
Number of DC input connections (groups) MC4*1
Maximum DC input voltage 52V
Operating voltage range 20-50V
Start-up voltage 18V
MPPT Tracking Range 22-48V
MPPT Tracking accuracy >99.5%
Maximum DC input current 12
Rated power output 380W
Maximum output power 400W
Rated output voltage 230V
Output voltage range 190-270V
Rated AC current (at 230V) 1.73A
Rated output frequency 60Hz
Output frequency range (Hz) 58.9-61.9Hz
THD ﹤5%
Power factor ﹥99%
Maximum number of branch circuit connections @120VAC : 8 set / @230VAC : 16 set
Maximum conversion efficiency 94%
CEC efficiency 92%
Night losses <80mW
Protection Function
Over/under voltage protection Yes
Over/under frequency protection Yes
Anti-islanding protection Yes
Overcurrent protection Yes
Overload protection Yes
Over-temperature protection Yes
Protection class IP65
Working environment temperature -40℃ ~ +65℃
Indicator lights quantity Working status LED light *1 + Wifi signal led light *1
Communication connection mode WiFi/2.4G
Cooling method Natural cooling (no fan)
Working environment temperature Indoor and outdoor
Certification standards EN61000-3-2,EN61000-3-3,EN62109-2,EN55032,
General information
Dimensions(L*W*H) 253mm*200mm*40mm
Net Weight 1.2 kg