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    What is the recommended line Fuse and Circuit Breaker size for the ATV58HD79N4XZU?

    Issue:   What is the recommended line Fuse and Circuit Breaker size for the ATV58HD79N4XZU?
     
    Product Line:   ATV58
     
    Environment:  ATV58HD79N4XZU
     
    Cause:   Breaker and fuse sizing
     
    Resolution:   
    The recommended maximum ratings depend on how the drive is used. This is due to the fact that the rated current of the drive varies due to application requirements.

    For 60 HP Constant Torque Low Noise (CTLN) and 100 HP Variable Torque (VT) applications, the recommended maximum line fuses are Class J fast acting 200 amp fuses. Class T fuses are acceptable.

    For 60 HP Constant Torque Low Noise (CTLN) and 100 HP Variable Torque (VT) applications, the recommended Circuit Breaker is KAL36200 with a minimum enclosure volume of 12900 cubic inches.

    For 75 HP Constant Torque (CT) and 75 HP Variable Torque Low Noise (VTLN) applications, the recommended maximum line fuses are Class J fast acting 175 amp fuses. Class T fuses are acceptable.

    For 75 HP Constant Torque (CT) and 75 HP Variable Torque Low Noise (VTLN) applications, the recommended Circuit Breaker is KAL36175 with a minimum enclosure volume of 12900 cubic inches.

    It is acceptable to use fuses or circuit breakers with lower current ratings.


     

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