VFD Disconnect Switch requirement

[mayanees]

430.102(A) requires a disconnect switch for the VFD (controller). I am of the opinion that if the VFD has an integral disconnect, then that meets the NEC requirement. Our client states that their people can't work on the controller when it's energized, even if the switch is integral to the controller. I've attached a cut sheet of the 30 hP controller.

The breaker that feeds the VFD is not within sight. The installation is 480 Volt.

I understand that the facility's safety rules take precedence over the NEC, but isn't the installation NEC-compliant without a local disconnect switch?

 

[MNWildcat]

Yes it is compliant to the NEC as you designed. But the owner/users have to also comply with OSHA and 70E. With that requirement the unit has to 100% removed from any power source. In this case, if the front cover is removed, there appears to be access tot he line side lugs, which would still be hot. I know that some equipment (VFDs and RTUs) does come with the incoming lugs fully separated from the rest of the unit thereby making it compliant with their usage; but I always spec a separate disconnect next to a VFD or RTU/AHU just to guarantee that there is a local disconnect that fully removes power from the item.
This is similar thought to a panel with a MCB turned off, the line side lugs are still hot and technically cannot be worked on.