Wels, 15th September 2016
MTBF DATA FRONIUS ECO
Fronius International GmbH
hereby informs that, based on system reliability predictions, extensive reliability tests and field experience with
the Fronius ECO, it was possible to calculate the MTBF (Mean Time between Failure).
It is assumed that an inverter will run for approximately 4.000 hours per year. The stated MTBF value is valid up
to 40.000 operational hours or 10 years. A reliable prediction beyond this time frame is not possible. However,
all components and circuits of the inverter are designed for a life time of 20 years.
/ MTBF= 800 000 device hours
Fronius International GmbH
Solar Energy Division
Froniusplatz 1
A-4600 Wels
DI Thomas Mühlberger
Head of Solution Management
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