GEP 3-5kW Single-phase | 2 MPPTs

This is where a short blurb can go to explain the value of this product. About 5 sentences maximum. Many of our competitors will sell cheaper, lower quality systems to make a fast buck. We will not. Our pricing is competitive but we only use products that are tried and tested and installers that are experts in solar. This saves you money.


Technical Data          GEP3.6-1-10  GEP4.2-1-10  GEP5.0-1-10
Max. Input Power (W)550063007500
Max. Input Voltage (V)600600600
MPPT Operating Voltage Range (V)80 ~ 55080 ~ 55080 ~ 550
Start-up Voltage (V)808080
Nominal Input Voltage (V)360360360
Max. Input Current per MPPT (A)131313
Max. Short Circuit Current per MPPT (A)*116.316.316.3
Number of MPP Trackers222
Number of Strings per MPPT111
Nominal Output Power (W)360042005000
Nominal Output Apparent Power (VA)360042005000
Max. AC Active Power (W)396046205500
Max. AC Apparent Power (VA)396046205500
Nominal Output Voltage (V)220 / 230220 / 230220 / 230
Nominal AC Grid Frequency (Hz)50 / 6050 / 6050 / 60
Max. Output Current (A)
Power Factor~1 (Adjustable from 0.8 leading to 0.8 lagging)
Max. Total Harmonic Distortion<3%<3%<3%
Max. Efficiency98.3%98.3%98.3%
European Efficiency97.5%97.6%97.8%
PV Insulation Resistance DetectionIntegratedIntegratedIntegrated
Residual Current MonitoringIntegratedIntegratedIntegrated
PV Reverse Polarity ProtectionIntegratedIntegratedIntegrated
Anti-islanding ProtectionIntegratedIntegratedIntegrated
AC Overcurrent ProtectionIntegratedIntegratedIntegrated
AC Short Circuit ProtectionIntegratedIntegratedIntegrated
AC Overvoltage ProtectionIntegratedIntegratedIntegrated
DC SwitchIntegratedIntegratedIntegrated
DC Surge ProtectionType IIType IIType II
AC Surge ProtectionType IIType IIType II
General Data
Operating Temperature Range (°C)-25 ~ +60-25 ~ +60-25 ~ +60
Relative Humidity0 ~ 100%0 ~ 100%0 ~ 100%
Max. Operating Altitude (m)300030003000
Cooling MethodNatural ConvectionNatural ConvectionNatural Convection
CommunicationWiFi , RS485 or LAN (Optional)
Communication ProtocolsModbus-RTU (SunSpec Compliant)
Weight (kg)
Dimension (W × H × D mm)336 × 400 × 124336 × 400 × 124336 × 400 × 124
Self-consumption at Night (W)<1<1<1
Ingress Protection RatingIP65IP65IP65
Country of ManufactureChinaChinaChina

Company Profile

In 1945, Günter Fronius (1907-2015) and his wife Friedl set up Fronius International GmbH in Pettenbach. Günter Fronius occupied himself with the development of battery charging systems in an electrical business. A little later, he employed 15 people. In the mid-1960s, the company started to manufacture electronics and welding torches. In 1972, Fronius opened a second site in Thalheim, near Wels, and moved production there. Günter Fronius handed over the management of the business to his two children in 1980, and from then on the company focused more and more on expansion and internationalisation. Sites were opened in Austria and beyond in the years that followed. At the same time, Fronius expanded into the fields of welding technology and battery charging technology. Photovoltaics became a new focus in 1992. In 2001, Fronius opened a factory in Pettenbach, the town in which the company started. The logistics and production site at Sattledt was opened in 2007. With the capture of the American market between 2002 and 2007, the company has now gained a foothold outside Europe.

With an aesthetic and user-friendly design, GEP 3-5kW is equipped with an elegant screen and is easy to install. Despite its reduced size, this petite model is capable of 150% DC oversizing, 110% AC overloading, and 98.3% max efficiency, which gives it a unique competitive edge. The latest and most advanced safety features are intelligently integrated and packed in this compact albeit powerful model. UV Power is proud to be partners with GE Solar.