Recommendations for an overload relay approved for the use on a VFD output?

[MTW]

When using a larger VFD to power a few motors, what are some Over;load Relays, brands and models that are listed for use on a VFD output?

I have read that many types are not suited for use on pulse width modulated outputs, that most types cannot sense accurately on this type output.
Preferably models that are separate mount that don't need to be mounted to a starter contactor. anyone have some pointers on where to look?

 

[don_resqcapt19]

Most VFDs have had listed overload protection as part of the VFD itself for a long time. I has been at least 25 years since I installed a separate overload device for a VFD.

 

[jim dungar]

These used to be common,
as long as you are using a bi-metal or melting alloy style. NEMA style were available with lugs in and out, while IEC style had a separate lug kit used with standard relays.

 

[ptonsparky]

Most VFDs have had listed overload protection as part of the VFD itself for a long time. I has been at least 25 years since I installed a separate overload device for a VFD.

I think he means 1 VFD feedingmore than one motor.

 

[petersonra]

Ab has some, also some mpcbs.