Duty

 

 

The service of an electrical motor defines the load duration and sequence to which the motor is subjected.  Nicolini & C. motors can operate for a continuous service, indicated with S1, unless otherwise required. The continuous service consists in subjecting the motor to a constant load with enough duration to guarantee the achievement of a thermal balance.

 

 

Duty services:

 

S1 Continuous duty
S2 Short time rating service
S3 Rating for periodic duty service
S4 Rating for periodic duty with starting service
S5 Rating for periodic duty with electric braking service
S6 Rating for continuous duty with intermittent load service
S7 Rating for continuous duty with electric breaking service