Nema 7/Explosion Proof VFD

[robs68charger]

I have a customer that has requested an expolsion proof motor on their metering pump. They also want an expolsion proof VFD to accept a 4-20mA signal. Does anyone know of a manfacturer of such a beast, or have any suggestions? I am almost thinking they should just buy a normal VFD and mount it in a safe location and run proper conduit and using fire stop instead.
Thanks
-Robs68charger

 

[itsmoked]

An EXP VFD is non-sense.

Yes, either mount it in the safe area or mount it in the hazardous area in an interlocked purged cabinet.

Keith Cress
kcress -

http://www.flaminsystems.com

 

[DRWeig]

Gotta vote with Keith.

Put the VFD somewhere safe. Rigid conduit and a couple of seals is much less expensive than trying to contain and cool a VFD.

Good on ya,

Goober Dave

 

[robs68charger]

Thanks,
I had the same feeling. I let my customer know they could use a VFd mount it in a safe location.