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

Per Engineering:
MTBF rates for the ATS48 were determined based on standard CNET UTE C 80-180 dated July 2000.

The following 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.

Model Number 30C 60C
D17 - D47Y 341,000 hours (or 85 years) 151,000 hours
D62 - C11Y 326,000 143,000
C14 - C17Y 306,000 131,000
C21 - C32Y 278,000 117,000
C41Y 265,000 117,000
C48 - C66Y 256,000 112,000
C79Y 207,000 85,000
M10 - M12Y 196,000 80,000 (or 20 years)




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