Should I Use Fuses Or A Breaker On Variable Frequency Drives (VFDs)?
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The recommended fuses we usually recommend are fast blow fuses. That’s going to be your ideal protection. Obviously, a breaker is going to be a lot slower in reacting to an over-current situation. Standard fuses also can be a lot slower in reacting. The more time it takes for it to react, the more potential damage can be caused to the drive as a result of whatever the overcurrent is.