What is the mean time between failure (MTBF) for the ATS48 unit?

Resolution:
MTBF rates for the ATS48 were determined based on standard CNET UTE C 80-180 dated July 2000.
The rates were calculated based on 335 running days per year, 12 hours per day, or 4020 hours per year.
The rates are given at two ambient temperatures: 30C and 60C.

See attached file.

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