Wels, December 17th 2015
FRONIUS IG PLUS AFCI COMPATIBILITY WITH SUNPOWER MODULES
Fronius International GmbH
hereby confirms that for the Fronius IG Plus Advanced inverter platform which includes Fronius and SunPower
branded inverters in the following models
/ Fronius IG Plus A 3.0-1 UNI
/ Fronius IG Plus A 3.8-1 UNI
/ Fronius IG Plus A 5.0-1 UNI
/ Fronius IG Plus A 6.0-1 UNI
/ Fronius IG Plus A 7.5-1 UNI
/ Fronius IG Plus A 10.0-1 UNI
/ Fronius IG Plus A 11.4-1 UNI
/ Fronius IG Plus A 10.0-3 Delta
/ Fronius IG Plus A 11.4-3 Delta
/ Fronius IG Plus A 12.0-3 WYE277
Fronius took extensive efforts to investigate and mitigate incompatibilities with the following SunPower modules
/ SunPower X-series
/ SunPower E-series
These efforts lead to an updated version of the Fronius ArcDetector (Version 1.8D_D). Based on the statistical data
collected, this new version is expected to resolve potential incompatibilities if they should arise. However the effect
of the taken measures is still to be investigated in an extended field test with systems using SunPower modules,
therefore compatibility cannot yet be guaranteed. Certification for Version 1.8D_D according to UL1699B is
completed.
Fronius International GmbH
Solar Energy Division
Froniusplatz 1
A-4600 Wels
DI Thomas Mühlberger
Head of Solution Management
02/2011
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