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What is the recommended line fuse or circuit breaker for the ATV58HC10N4XZU?

This depends on how the drive is being used.
Below are maximum ratings. Do not use fuses or circuit breakers with higher amp ratings than listed in the installation manual.
Lower amp ratings are acceptable.
For 125 HP, 460 VAC, Variable Torque applications use FWH300A Bussman or equivalent fuse.
For 125 HP, 460 VAC, Variable Torque applications use KAL36250 circuit breaker with minimum enclosure size of 4500 cubic inches.
If the drive is used for lower HP constant torque applications it may be necessary to use smaller ratings as required by local electrical codes and standards.


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