The on period shall be (25 ) % of the total cycle and the off period (75 ) %.
Cycles per minute depends on the type of load & rating.
For switches with a rated fluorescent lamp current of 6 A up to and including 10 A: 10 000 operations with 30 operations per minute.
For switches with rated current above 10 A up to and including 20 A: 5 000 operations with 15 operations per minute.