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What is the difference between Mechanical Life and Electrical Life?
"Mechanical Life" refers to the number of physical actuation cycles a switch mechanism can endure without electrical load applied (often exceeding 1,000,000 cycles). "Electrical Life" represents the number of switching cycles the electrical contacts survive under full rated load (especially AC-15 inductive loads) before arc erosion causes contact failure (typically 100,000 to 500,000 cycles). Always prioritize electrical life during specification.