Until now, a VFD couldn’t be used inside a classified enclosure in Class I, Division 1 or 2 locations. The heat generated by the VFD inside the classified enclosure caused it to fail. To overcome this problem, VFDs had to be stationed in control rooms outside of the hazardous area, resulting in expensive and impractical installation costs.
But what if you could station VFDs exactly where you want them, literally mounting the drives next to motors inside Class I areas? This would provide:
Crouse-Hinds has developed such a solution – the ACE series explosionproof variable frequency drive. It is the only explosionproof enclosure to safely and reliably house a VFD. This revolutionary new product features a NEMA 7 enclosure with patent pending active cooling technology, allowing a traditional VFD to be housed inside the classified enclosure without the risk of overheating.
The ACE explosionproof VFD is rated Class I, Divisions 1 and 2 for use in the most extreme hazardous environments, and it is designed to match the high requirements of pumps, compressors, fans, separators and mixers in the following process industries: