400W GTB 400 Grid Micro Inverter With WiFi

This GTB 400 Grid Micro Inverter has a power output of 400W. It is designed to be waterproof with an IP65 rating. It operates at a voltage range of 22-50VDC and has a wide input voltage range of 230VAC.

It features an RS232 port for connectivity and comes with a WIFI module for intelligent monitoring and control. It is easy to install and provides reliable performance. Additionally, it is compatible with the smart home monitoring system, allowing for Internet of things integration.

Contact us


  1. MPPT technology for high performance.
  2. Reverse power transmission capability.
  3. Fully isolated input/output for electrical safety.
  4. Ability to stack in parallel.
  5. Digital control system for efficient operation.
  6. User-friendly maintenance.
  7. Low operation and maintenance costs.
  8. Flexible installation options
  9. 400W WiFi Micro Grid inverter
  10. 120V/230V MPPT Ip65 waterproof
  11. App Remote

structure of GTB 400 Grid Micro Inverter


  • Deliver eco-conscious and sustainable power to meet residential electricity needs.
  • Transform solar energy harnessed by solar panels into alternating current to satisfy the commercial electricity requirements of shopping centers, factories, and various industrial facilities.
  • Enable agricultural applications, including providing power for irrigation systems and livestock shelters.
  • Offer vital electricity assistance to individuals relying on electrical appliances.
  • Contribute to municipal engineering initiatives, such as road lighting systems.
  • Harness solar energy for lighting to promote energy efficiency and reduce emissions, aligning with conservation goals.



Model EGTB400W-220V-WIFI
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 1.7 kg