Hooking up VFD

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Re: Hooking up VFD

#130646 09/28/06 11:30 PM

Joined: Feb 2002

Posts: 182

Mobile, AL, USA

B

Bob

Member

Adjustable Speed drives are covered in 430.120. The ampacity of the conductor must be at least 125% of the drive rating.
A 7 1/2 HP has a FLA of 24 amps. I don't think the 25 amps breaker will do.

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Entire Thread
Subject	Posted By	Posted
Hooking up VFD	ayrton	09/29/06 12:20 AM
Re: Hooking up VFD	Bob	09/29/06 03:30 AM
Re: Hooking up VFD	jraef	10/02/06 11:06 PM
Re: Hooking up VFD	ayrton	10/03/06 05:19 PM
Re: Hooking up VFD	renosteinke	10/03/06 11:14 PM
Re: Hooking up VFD	jraef	10/07/06 11:35 PM
Re: Hooking up VFD	renosteinke	10/09/06 02:16 PM

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ECN Forum Forums Technical Discussion Electrical Theory and Applications Hooking up VFD