VFD multiple listings

Multiple listings (i.e. multiple ratings) allows you to re-rate a VFD, such as the ACH580, to a lower rating. This lower rating may allow for smaller upstream electrical infrastructure (wire, breaker, fuses, gear, etc). The multiple listing capability also allows a larger VFD to be installed in place of an existing smaller VFD, while maintaining NEC compliance without the need to increase the input power wire size. MOCP and MCA ratings for AHUs can also be reduced by leveraging multiple listings on ABB drives.
Multiple Drive Rating, Manual Supplement, US:
search.abb.com/library/Downlo...
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