Duty cycles of motors
Common duty cycles of motors (IEC 34 Standard)
S1 (CONTINUOUS DUTY): Operation with constant load over a sufficient duration for reaching o thermal equilibrium.
S2 (SHORT TIME DUTY): Short time operation,total cooling between each start.
S3 (INTERMITTENT PERIODIC DUTY): The starting current has no significant effect on temperature rise.To be followed by the maximum operating time.
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